Presented at the SkyScrapers meeting on March 1, 2013 in Scituate, RI, these slides look at how astronomical data are processed/colored and what implications those colors might have.
Basic photography concepts: aperture, shutter speed, ISO speed, exposure. Photography is all about light. To let the camera "see" what you wish, you have tools controlling how much light reaches the camera sensor: the aperture and shutter speed controls. With too little light, your photo will be too dark
Examining perceptions of astronomy images across mobile platformsKim Arcand
In a recent Aesthetics & Astronomy study, an online survey and focus groups were used to explore whether mobile platforms affect perception of astronomy images. In the online study, participants on their mobile devices were randomly assigned to view astronomy images. Two focus groups were also conducted with experts and non-expert volunteers. Both groups were presented with deep space images across platforms- a large projection screen, an iPad, and an iPhone. Although this was part of a larger study, we report here just on the mobile platform. Results indicated that there was support for Smith & Smith's 2001 concept of facsimile accommodation in that, as might be expected, bigger was better except in the absence of a comparison, where participants adapted to the platform size. The results raise questions as to both size and quality of images on mobile platforms in a rapidly changing technological world.
Basic photography concepts: aperture, shutter speed, ISO speed, exposure. Photography is all about light. To let the camera "see" what you wish, you have tools controlling how much light reaches the camera sensor: the aperture and shutter speed controls. With too little light, your photo will be too dark
Examining perceptions of astronomy images across mobile platformsKim Arcand
In a recent Aesthetics & Astronomy study, an online survey and focus groups were used to explore whether mobile platforms affect perception of astronomy images. In the online study, participants on their mobile devices were randomly assigned to view astronomy images. Two focus groups were also conducted with experts and non-expert volunteers. Both groups were presented with deep space images across platforms- a large projection screen, an iPad, and an iPhone. Although this was part of a larger study, we report here just on the mobile platform. Results indicated that there was support for Smith & Smith's 2001 concept of facsimile accommodation in that, as might be expected, bigger was better except in the absence of a comparison, where participants adapted to the platform size. The results raise questions as to both size and quality of images on mobile platforms in a rapidly changing technological world.
ARE 494 Digital Ethnography Benjamin NewtonWallyOyen
Benjamin Newton's research presentation from Mary Stokrocki's 2015 Digital Ethnography Course. Research was conducted through an interview with Mary Stokrocki.
As libraries across the country prepare to implement space science-themed programs in summer 2019, the Space Science Institute and Lunar and Planetary Institute are partnering with state libraries to deliver training on NASA science learning experiences.
This effort is part of the SMD Science Activation program and the STAR Library Network-Collaborative Summer Library Program partnership.
A Mathematician's Journey to the Edge of the Universe: What's the Ultimate Qu...Manjunath.R -
We refer to the totality of all objects that exist in space as the "universe." It contains countless stars, galaxies, black holes, vast gas clouds, and a variety of other amazing objects. A few beliefs about how our Universe was born and how it will perish were irrevocably altered by the unexpected discovery that space is not only expanding, but expanding ever faster. Most people find it too difficult and overwhelming to consider the subject of our universe. We can identify with it. Our mind begins to stumble when the topic is brought up, and we begin to doubt one's intelligence in our search for an understanding of the Universe we live in. We spend time looking at the amazing story of how humankind's understanding of the universe has evolved, from Copernicus and Newton through Einstein, Hubble, and beyond. Detailed with the most interesting facts about the universe − this book will extend your mind for a better understanding of our intriguing cosmos whether you're an astrophysicist collecting nice pics of the night sky, a casual viewer of the constellations, or a dedicated scholar working in the field of physics and astronomy. This book takes readers on a journey through the Laws of the Cosmos to the origins and structure of the cosmos, covering the Big Bang, stellar evolution, and gravitational waves. Beginners looking for an accessible introduction to the contemporary understanding of the Universe should pick up this book. It's an interesting read that serves as a fantastic starting point for further research on any subject that grabs the reader's attention.
Significance of space exploration, interesting facts about space, Galaxies, b...Shimpi Kaim
learn the significance of space exploration, interesting facts about space, Galaxies, blackholes and wormholes. views on aliens and space/time travel through wormholes. with significant contributions of space shuttles and equipments in the healthcare and telecom industry.
As libraries across the country prepare to implement space science-themed programs in summer 2019, the Space Science Institute and Lunar and Planetary Institute are partnering with state libraries to deliver training on NASA science learning experiences.
This effort is part of the SMD Science Activation program and the STAR Library Network-Collaborative Summer Library Program partnership.
have fun using these activities I got from the web and this is my first word document send to slideshare. Hope you have fun and don't forget to give this a like!
How Astronomy Has Changed The World
Astronomy Research Paper
I Want To Be An Astronomer
Astronomy Essay
Astronomy: A Career Essay
Reflective Essay On Astronomy
Astronomy Essay
History of Astronomy
Ancient Greek Astronomy Essay
Reflection Paper On Astronomy
Astronomy : My Goals In Life, My Dream Career
Mayan Astronomy Essay
Astronomy Observations
Astronomy Essay
Astronomy Essay
Socrates On Astronomy
Essay about Telescopes in Astronomy
Astronomy Research Paper
A Career In Astronomy
Women In Astronomy Essay
NASA’s Chandra X-ray Observatory Education, Public Engagement & Communication...Kim Arcand
The overarching goal of Chandra's multi-faceted education, public engagement and communications program (aka Education and Public Outreach, or EPO) is to provide open access and multiple opportunities to learn about the cutting-edge science results. Chandra EPO develops educational products and activities that share discoveries about the high-energy Universe in context with some of the largest questions being asked in physical sciences today. Our efforts are targeted at diverse audi-ences, engaging the imaginations of students, teachers and other audiences, and increasing learning opportunities. The starting point for all Chandra EPO is utilizing established working relationships with scientists. Once our products and activities are developed with expert input, we partner with or-ganizations such as the National Science Olympiad, the 4-H, the NASA Museum Alliance and the American Library Association, among others, to leverage external distribution networks for national impact. Enabling and sustaining a network of “volunpeers” empowered to organize science education events in their communities further strengthens the reach of educational science materials. We summa-rize a sample of our synthesized suite of programs in informal and formal education that communicate the compelling topics that the high-energy Universe can reveal, as well as provide an overview of the guiding research and specific evaluation results.
Here, There, & Everywhere: Public Science Through AnalogyKim Arcand
Here, There, and Everywhere (HTE) is a NASA-funded program that consists of a series of exhibitions, posters, and supporting hands-on activities that utilize analogies in the teaching of science, technology, engineering and math (STEM) to provide multi-generational and family-friendly content in English and Spanish for community centers, libraries, schools, and under-resourced or small science centers. The purpose of the program is to connect cross-cutting content -- in Earth, atmospheric, planetary sciences and astrophysics -- with everyday phenomena, helping to demonstrate that what happens here (in our daily lives), happens there (on a planetary scale), and happens everywhere (across the Universe). The HTE program utilizes multimodal content delivery (physical exhibits and handouts, interpretive stations, facilitated activities for educators as well as online materials) hosted by locations for informal science learning as identified by previous partnerships as well as through advertisement of opportunities.
The use of metaphors in teaching and learning has a long-standing history. Metaphors can be an effective way to make something new seem less daunting, by comparing it with something more familiar. This technique of equating different or disparate things to one another can help complex concepts become more understandable and accessible. It is the power of the metaphor that we seek to discuss in this proposed article. We explore a recent public science project from the Chandra X-ray Center called “Here, There and Everywhere” that attempts to utilize analogy in effective science communication, as well as what dangers might exist in the use of metaphor and analogy. We also look to other areas where metaphors may be useful to implement in astronomy communications, such as for upcoming programs including the International Year of Light 2015.
ARE 494 Digital Ethnography Benjamin NewtonWallyOyen
Benjamin Newton's research presentation from Mary Stokrocki's 2015 Digital Ethnography Course. Research was conducted through an interview with Mary Stokrocki.
As libraries across the country prepare to implement space science-themed programs in summer 2019, the Space Science Institute and Lunar and Planetary Institute are partnering with state libraries to deliver training on NASA science learning experiences.
This effort is part of the SMD Science Activation program and the STAR Library Network-Collaborative Summer Library Program partnership.
A Mathematician's Journey to the Edge of the Universe: What's the Ultimate Qu...Manjunath.R -
We refer to the totality of all objects that exist in space as the "universe." It contains countless stars, galaxies, black holes, vast gas clouds, and a variety of other amazing objects. A few beliefs about how our Universe was born and how it will perish were irrevocably altered by the unexpected discovery that space is not only expanding, but expanding ever faster. Most people find it too difficult and overwhelming to consider the subject of our universe. We can identify with it. Our mind begins to stumble when the topic is brought up, and we begin to doubt one's intelligence in our search for an understanding of the Universe we live in. We spend time looking at the amazing story of how humankind's understanding of the universe has evolved, from Copernicus and Newton through Einstein, Hubble, and beyond. Detailed with the most interesting facts about the universe − this book will extend your mind for a better understanding of our intriguing cosmos whether you're an astrophysicist collecting nice pics of the night sky, a casual viewer of the constellations, or a dedicated scholar working in the field of physics and astronomy. This book takes readers on a journey through the Laws of the Cosmos to the origins and structure of the cosmos, covering the Big Bang, stellar evolution, and gravitational waves. Beginners looking for an accessible introduction to the contemporary understanding of the Universe should pick up this book. It's an interesting read that serves as a fantastic starting point for further research on any subject that grabs the reader's attention.
Significance of space exploration, interesting facts about space, Galaxies, b...Shimpi Kaim
learn the significance of space exploration, interesting facts about space, Galaxies, blackholes and wormholes. views on aliens and space/time travel through wormholes. with significant contributions of space shuttles and equipments in the healthcare and telecom industry.
As libraries across the country prepare to implement space science-themed programs in summer 2019, the Space Science Institute and Lunar and Planetary Institute are partnering with state libraries to deliver training on NASA science learning experiences.
This effort is part of the SMD Science Activation program and the STAR Library Network-Collaborative Summer Library Program partnership.
have fun using these activities I got from the web and this is my first word document send to slideshare. Hope you have fun and don't forget to give this a like!
How Astronomy Has Changed The World
Astronomy Research Paper
I Want To Be An Astronomer
Astronomy Essay
Astronomy: A Career Essay
Reflective Essay On Astronomy
Astronomy Essay
History of Astronomy
Ancient Greek Astronomy Essay
Reflection Paper On Astronomy
Astronomy : My Goals In Life, My Dream Career
Mayan Astronomy Essay
Astronomy Observations
Astronomy Essay
Astronomy Essay
Socrates On Astronomy
Essay about Telescopes in Astronomy
Astronomy Research Paper
A Career In Astronomy
Women In Astronomy Essay
NASA’s Chandra X-ray Observatory Education, Public Engagement & Communication...Kim Arcand
The overarching goal of Chandra's multi-faceted education, public engagement and communications program (aka Education and Public Outreach, or EPO) is to provide open access and multiple opportunities to learn about the cutting-edge science results. Chandra EPO develops educational products and activities that share discoveries about the high-energy Universe in context with some of the largest questions being asked in physical sciences today. Our efforts are targeted at diverse audi-ences, engaging the imaginations of students, teachers and other audiences, and increasing learning opportunities. The starting point for all Chandra EPO is utilizing established working relationships with scientists. Once our products and activities are developed with expert input, we partner with or-ganizations such as the National Science Olympiad, the 4-H, the NASA Museum Alliance and the American Library Association, among others, to leverage external distribution networks for national impact. Enabling and sustaining a network of “volunpeers” empowered to organize science education events in their communities further strengthens the reach of educational science materials. We summa-rize a sample of our synthesized suite of programs in informal and formal education that communicate the compelling topics that the high-energy Universe can reveal, as well as provide an overview of the guiding research and specific evaluation results.
Here, There, & Everywhere: Public Science Through AnalogyKim Arcand
Here, There, and Everywhere (HTE) is a NASA-funded program that consists of a series of exhibitions, posters, and supporting hands-on activities that utilize analogies in the teaching of science, technology, engineering and math (STEM) to provide multi-generational and family-friendly content in English and Spanish for community centers, libraries, schools, and under-resourced or small science centers. The purpose of the program is to connect cross-cutting content -- in Earth, atmospheric, planetary sciences and astrophysics -- with everyday phenomena, helping to demonstrate that what happens here (in our daily lives), happens there (on a planetary scale), and happens everywhere (across the Universe). The HTE program utilizes multimodal content delivery (physical exhibits and handouts, interpretive stations, facilitated activities for educators as well as online materials) hosted by locations for informal science learning as identified by previous partnerships as well as through advertisement of opportunities.
The use of metaphors in teaching and learning has a long-standing history. Metaphors can be an effective way to make something new seem less daunting, by comparing it with something more familiar. This technique of equating different or disparate things to one another can help complex concepts become more understandable and accessible. It is the power of the metaphor that we seek to discuss in this proposed article. We explore a recent public science project from the Chandra X-ray Center called “Here, There and Everywhere” that attempts to utilize analogy in effective science communication, as well as what dangers might exist in the use of metaphor and analogy. We also look to other areas where metaphors may be useful to implement in astronomy communications, such as for upcoming programs including the International Year of Light 2015.
Public Science: Astronomy in Everyday SituationsKim Arcand
Akin to public art, public science can be defined as “science outreach that has been conducted outdoors or in another type of public or accessible space such as a public park, metro stop, library etc.
Through The Lens: Examples of Micro and Macro Representations in the 17th an...Kim Arcand
Can historical scientific representations of data, and the visual arguments they offer, help inform modern day issues of image and meaning? In this presentation, I consider Robert Hooke’s microscopic portrayals from Micrographia as compared with modern astronomical representations from NASA’s fleet of space-based telescopes.
A leaf falls from a tree, dancing in a breeze as it floats to the ground. In the playground across the street, laughing children tighten their grips to hold themselves on the merry-go-round. Back in the kitchen, a metal lid rattles under the pressure of steam escaping from the tea kettle below. Our daily experiences reveal much about how our world works. Thinking about everyday examples from the world around us helps form our basic understanding of physics.
Processing Color in Astronomical ImageryKim Arcand
Astronomical data translate into a powerful form of imagery for the public. Cosmic images provide an opportunity for us to consider some of the largest philosophical questions facing the human race - where do we come from, and where are we going?
Public Science: Taking Astronomy to the PeopleKim Arcand
Public Science: science outreach that has been conducted outdoors or in another type of public or accessible space such as a public park, metro stop, library etc. with the intention of engaging the public
Processing Color in Astronomical Imagery: Pixels, Power and the Public Kim Arcand
What are the ethical issues involved in the processing –specifically colorizing- of astronomical data, how do non-experts perceive this imagery, and does the public understand the choices made in the representation of the data?
Distributed curation and global to local methodology Kim Arcand
Investigating distributed curation and global-to-local methodologies in the From Earth to the Universe project. Adapted from a presentation for Brown Univ. on November 17, 2010.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
BÀI TẬP BỔ TRỢ TIẾNG ANH GLOBAL SUCCESS LỚP 3 - CẢ NĂM (CÓ FILE NGHE VÀ ĐÁP Á...
How to Color the Universe
1. How to Color the Universe
Kim Arcand
Co-author, Your Ticket to the Universe
NASA’s Chandra X-ray Observatory
Smithsonian Astrophysical Observatory
March, 2013
Twitter: @kimberlykowal
Hashtag: ColorUniv
2. Pink planets? Green galaxies? Purple blobs? Is space really so colorful? Take a tour of
the multiwavelength universe from our local neighborhood, the solar system, and out to
the farthest destinations in human knowledge. With data from NASA's Chandra X-ray
telescope, Spitzer space telescope and Hubble, along with ground-based images from
observatories and amateur astronomers worldwide, we'll take a look at what goes into
the kaleidoscope of color we enjoy from our vantage point on Earth.
11. This is contributing to the informational quotient of an image.
Oxygen
Neon
Magnesium
Silicon & Sulfur
Adding Color = Adding to Information Quotient
37. Studying the public’s perception and understanding of astronomical
imagery across multiple traditional and non-traditional venues and
platforms, including mobile and web platforms.
Research questions:
• How much do variations in presentation of color, explanation, and
scale affect comprehension of astronomical images?
• What are the differences between various populations (experts,
novices, students) in terms of what they learn from the images?
• What misconceptions do the non-experts have about astronomy and
the images they are exposed to?
Does presentation have an effect – whether aesthetic or in terms of
learning?
Aesthetics & Astronomy research
38. • Providing context for the image is critical to comprehension.
• Experts prefer text that is shorter/to the point; novices prefer
narrative expository style to accompany image.
• A sense of scale with the images is helpful for comprehension
at all levels of expertise.
• Experts and novices view the images differently. Novices
begin with a sense of awe/wonder, and focus first on the
aesthetic qualities. Experts wonder how the image was
produced, what information is being presented in the image,
and what the creators of the image wanted to convey.
• Experts are much more likely to view blue as hot than are
novices; about 80% of novices see red as hot compared to
60% of experts.
Results of study available in Journal of Science Communication & in
CAPJournal. See also http://astroart.cfa.harvard.edu/
Outcomes of A&A
42. Our image of our place in the Universe=Center of Galaxy?
43. Nope. There is no center of the Universe.
And not only that but we (the material we’re made of) are but
“a speck on a speck on a speck on a speck”
of what the Universe is…
Our image of our place in the Universe=Center of Universe at least??!
44. Like the jelly beans in this jar, the
Universe is mostly dark: about 96
percent consists of dark energy
(about 70%) and dark matter (about
26%). Only about 4 percent (the
same proportion as the lighter
colored jelly beans) of the
Universe—including the stars,
planets and us—is made of familiar
atomic matter.
No image? We can still use color
Astronomical data translate into a powerful form of imagery for the public. Cosmic images provide an opportunity for us to consider some of the largest philosophical questions facing the human race - where do we come from, and where are we going? There are so many astronomy images are available for experts and non-experts alike, from a fleet of telescopes on the ground and in space. Terabytes upon terabytes of data coming out of the fleet of observatories, not to mention astrophotographers.
Astronomers have used this set of single-colour images, shown around the edge, to construct the colour picture (centre) of a ring of star clusters surrounding the core of the galaxy NGC 1512. These pictures were taken by the NASA/ESA Hubble Space Telescope's Faint Object Camera (FOC), Wide Field and Planetary Camera 2 (WFPC2), and the Near Infrared Camera and Multi-Object Spectrometer (NICMOS).Each image represents a specific colour or wavelength region of the spectrum, from ultraviolet to near infrared, and shows the wide wavelength region covered by Hubble. Celestial bodies emit light at a variety of wavelengths, anywhere from gamma rays to radio waves. Astronomers chose to study NGC 1512 in these colours to emphasise important details in the ring of young star clusters surrounding the core
A spiral galaxy located about 21 million light years from Earth. (Credit: X-ray: NASA/CXC/SAO; IR & UV: NASA/JPL-Caltech; Optical: NASA/STScI) Caption: This composite image of M101 (aka, the "Pinwheel Galaxy") combines data from four of NASA's space-based telescopes. X-rays from Chandra (purple) reveal the hottest and most energetic areas due to exploded stars, superheated gas, and material falling toward black holes. Infrared data from Spitzer (red) shows dusty lanes in the galaxy where stars are forming, while Hubble data (yellow) traces the light from stars. Ultraviolet emission detected by GALEX (blue) shows emission from young stars. Scale: Image is 16.8 arcmin across.
A spiral galaxy located about 21 million light years from Earth. (Credit: X-ray: NASA/CXC/SAO; IR & UV: NASA/JPL-Caltech; Optical: NASA/STScI) Caption: This composite image of M101 (aka, the "Pinwheel Galaxy") combines data from four of NASA's space-based telescopes. X-rays from Chandra (purple) reveal the hottest and most energetic areas due to exploded stars, superheated gas, and material falling toward black holes. Infrared data from Spitzer (red) shows dusty lanes in the galaxy where stars are forming, while Hubble data (yellow) traces the light from stars. Ultraviolet emission detected by GALEX (blue) shows emission from young stars. Scale: Image is 16.8 arcmin across.
A spiral galaxy located about 21 million light years from Earth. (Credit: X-ray: NASA/CXC/SAO; IR & UV: NASA/JPL-Caltech; Optical: NASA/STScI) Caption: This composite image of M101 (aka, the "Pinwheel Galaxy") combines data from four of NASA's space-based telescopes. X-rays from Chandra (purple) reveal the hottest and most energetic areas due to exploded stars, superheated gas, and material falling toward black holes. Infrared data from Spitzer (red) shows dusty lanes in the galaxy where stars are forming, while Hubble data (yellow) traces the light from stars. Ultraviolet emission detected by GALEX (blue) shows emission from young stars. Scale: Image is 16.8 arcmin across.
A spiral galaxy located about 21 million light years from Earth. (Credit: X-ray: NASA/CXC/SAO; IR & UV: NASA/JPL-Caltech; Optical: NASA/STScI) Caption: This composite image of M101 (aka, the "Pinwheel Galaxy") combines data from four of NASA's space-based telescopes. X-rays from Chandra (purple) reveal the hottest and most energetic areas due to exploded stars, superheated gas, and material falling toward black holes. Infrared data from Spitzer (red) shows dusty lanes in the galaxy where stars are forming, while Hubble data (yellow) traces the light from stars. Ultraviolet emission detected by GALEX (blue) shows emission from young stars. Scale: Image is 16.8 arcmin across.
A spiral galaxy located about 21 million light years from Earth. (Credit: X-ray: NASA/CXC/SAO; IR & UV: NASA/JPL-Caltech; Optical: NASA/STScI) Caption: This composite image of M101 (aka, the "Pinwheel Galaxy") combines data from four of NASA's space-based telescopes. X-rays from Chandra (purple) reveal the hottest and most energetic areas due to exploded stars, superheated gas, and material falling toward black holes. Infrared data from Spitzer (red) shows dusty lanes in the galaxy where stars are forming, while Hubble data (yellow) traces the light from stars. Ultraviolet emission detected by GALEX (blue) shows emission from young stars. Scale: Image is 16.8 arcmin across.
A spiral galaxy located about 21 million light years from Earth. (Credit: X-ray: NASA/CXC/SAO; IR & UV: NASA/JPL-Caltech; Optical: NASA/STScI) Caption: This composite image of M101 (aka, the "Pinwheel Galaxy") combines data from four of NASA's space-based telescopes. X-rays from Chandra (purple) reveal the hottest and most energetic areas due to exploded stars, superheated gas, and material falling toward black holes. Infrared data from Spitzer (red) shows dusty lanes in the galaxy where stars are forming, while Hubble data (yellow) traces the light from stars. Ultraviolet emission detected by GALEX (blue) shows emission from young stars. Scale: Image is 16.8 arcmin across.
Also known as the Cat's Eye, this planetary nebula is located about 3,000 light years from Earth. (Credit: X-ray: NASA/CXC/SAO; Optical: NASA/STScI) Caption: A composite image of data from NASA’s Chandra X-ray Observatory (blue) and Hubble Space Telescope (red and purple) of NGC 6543 shows a phase that Sun-like stars undergo at the end of their lives. Material from the outer layers of the star in the Cat's Eye is flying away at about 4 million miles per hour. A hot core is left behind that eventually collapses to become a white dwarf star. The Chandra data reveal that the central star in NGC 6543 is surrounded by a cloud of multi-million-degree gas. Scale: Image is 1.2 arcmin across.
Also known as the Cat's Eye, this planetary nebula is located about 3,000 light years from Earth. (Credit: X-ray: NASA/CXC/SAO; Optical: NASA/STScI) Caption: A composite image of data from NASA’s Chandra X-ray Observatory (blue) and Hubble Space Telescope (red and purple) of NGC 6543 shows a phase that Sun-like stars undergo at the end of their lives. Material from the outer layers of the star in the Cat's Eye is flying away at about 4 million miles per hour. A hot core is left behind that eventually collapses to become a white dwarf star. The Chandra data reveal that the central star in NGC 6543 is surrounded by a cloud of multi-million-degree gas. Scale: Image is 1.2 arcmin across.
Also known as the Cat's Eye, this planetary nebula is located about 3,000 light years from Earth. (Credit: X-ray: NASA/CXC/SAO; Optical: NASA/STScI) Caption: A composite image of data from NASA’s Chandra X-ray Observatory (blue) and Hubble Space Telescope (red and purple) of NGC 6543 shows a phase that Sun-like stars undergo at the end of their lives. Material from the outer layers of the star in the Cat's Eye is flying away at about 4 million miles per hour. A hot core is left behind that eventually collapses to become a white dwarf star. The Chandra data reveal that the central star in NGC 6543 is surrounded by a cloud of multi-million-degree gas. Scale: Image is 1.2 arcmin across.
Also known as the Cat's Eye, this planetary nebula is located about 3,000 light years from Earth. (Credit: X-ray: NASA/CXC/SAO; Optical: NASA/STScI) Caption: A composite image of data from NASA’s Chandra X-ray Observatory (blue) and Hubble Space Telescope (red and purple) of NGC 6543 shows a phase that Sun-like stars undergo at the end of their lives. Material from the outer layers of the star in the Cat's Eye is flying away at about 4 million miles per hour. A hot core is left behind that eventually collapses to become a white dwarf star. The Chandra data reveal that the central star in NGC 6543 is surrounded by a cloud of multi-million-degree gas. Scale: Image is 1.2 arcmin across.
I’d like to talk about about how these images are received by non-experts. I’ve had the pleasure of running a project called “From Earth to the Universe” since 2009. This project puts astronomy image exhibits in unusual locations for science outreach – public parks, metros, cafes, prisons, etc. We’ve had about 1,000 different exhibit sites and in 40 languages worldwide, on every continent except Antarctica. The image collection has about 125 images in it, some of the most dramatic views of our universe, from NASA’s multimillion dollar satellites, to the most powerful ground based telescopes, and a host of astrophotographers images.
Akira FujiiA LUNAR ECLIPSE: Why does the Moon have a reddish hue in these images? It's the same reason that the Sun appears reddish during a sunset: scattered light. In a lunar eclipse, the Earth is situated directly between the Sun and the Moon. Sunlight reaching the Moon travels a path through dense layers of Earth's atmosphere. Atmospheric particles preferentially scatter out shorter (bluer) wavelengths leaving only the longer (redder) wavelengths to refract (bend) through the atmosphere and illuminate the Moon. Image Credit: Akira Fujii/Ciel et Espace
Dan Schechter. COMET HALE-BOPP656 light secondsComet Hale-Bopp was a treat mostly for northern hemisphere observers in 1997. Its passage through the inner solar system was relatively stately, and was visible to the naked eye for well over a year. At its peak in 1997, Hale-Bopp developed two tails - the bright white dust tail, and a blue tail made from glowing ionised gas. Hale-Bopp will come by again - just not for another 2400 years or so!
ANTARES600 light-yearsOne of the most colourful vistas in the night sky is the region around the red supergiant star called Antares. This huge star is about 700 times the diameter of our Sun. If we had a star of this size in our Solar System it would completely engulf all the planets out as far as Mars - including Earth. Behind Antares there are colourful areas of hydrogen gas (pink) and dust (yellow). To the right is the triplet star Rho Ophiuchi, sitting in its own glowing blue mantle of gas. This image also includes the globular star clusters M4 and NGC 6144.Credit: Jay Ballauer / Adam Block
David Malin’s CORONA AUSTRALIS REFLECTION NEBULA500 light-yearsA long tail of interstellar dust shines in the reflected light of nearby stars in this view of a nebula in the constellation Corona Australis (the southern crown). In some parts the dust accumulates to form dense molecular clouds from which it is thought young stars are born.Credit: David Malin.
But when in the U.S. we asked exhibit attendees which were the most memorable images, I was a little surprised at the results. So let’s take a poll. How many would say this first image is most memorable? And this one…etc.
But when in the U.S. we asked exhibit attendees which were the most memorable images, I was a little surprised at the results. So let’s take a poll. How many would say this first image is most memorable? And this one…etc.
These were some of the most memorable images. Beauty is in the eye of the beholder. Before I go any further, I have to make a disclaimer here because this data is not rigorous. Each of the locations were highly unique as far as space and setup (compare a college square for example to a small library, and the logistics of having them arranged the same are impossible). Not all images were used in each location, the images were placed in different spots as space allowed. The traffic patterns of the venues were all different. For example In a few locations, we seemed to notice a trend that the images placed closest to the bathrooms were coming across as memorable - possibly because folks were staying put in that location the longest, waiting for a family member to come out, or just in line to use the facilities even. Also it could be that that stories behind these particular images made the image stick in the viewer’s mind. So again, not rigorous. But interesting nonetheless –with a lot more research questions to follow up on.
Moving out of photo-type images for a bit. What about when we want to talk about topics in cosmology, about the greater Universe, and there are not pretty pictures? An example of this is our collective image of our place in the universe, and the shift from us being at the center. Though according to Jon Miller’s study from early 2000’s,One adult American in five thinks the Sun revolves around the Earth –.
We now know that the Sun is the center of the solar system, and like squabbling siblings, Earth is just one out of 8 planets
But surely, Our image of our place in the Universe=Center of Galaxy?Well no. But it turns out that’s a good thing of course, b/c there’s a big black hole at the center of our galaxy that helps control and regulate the care and feeding and ultimate size of our galaxy. Ok.
Ok fine. But we are in the center of the Universe at least?Nope. There is no centre of the universe! According to the standard theories of cosmology, the universe started with a "Big Bang" about 14 thousand million years ago and has been expanding ever since. Yet there is no centre to the expansion; it is the same everywhere. The Big Bang should not be visualised as an ordinary explosion. The universe is not expanding out from a centre into space; rather, the whole universe is expanding and it is doing so equally at all places, as far as we can tell.And not only that but we (the material we’re made of) are but “a speck on a speck on a speck on a speck” (borrowing that from Neil degrasse Tyson)of what the Universe is…
And the universe is made of Jelly Beans of course. But really, this image is an attempt to talk about some of these big cosmological ideas in a way that is still relatable to us in an everyday situation. Our Universe is mostly dark: about 96 percent consists of dark energy (about 70%) and dark matter (about 26%). Only about 4 percent (the same proportion as the lighter colored jelly beans) of the Universe—including the stars, planets and us—is made of familiar atomic matter.
The images I’ve showed today are all in our upcoming book, launching in one month. If you’re interested in talking any more about the research study, please get in touch. Also for any folks interested, I have handouts on our process at Chandra as well as pointers to data sets to work with.