Alien life forms on other planets

1. ALIEN LIFE FORMS IN
OTHER PLANET
By VISHNU A H

2. HOW MANY OF YOU BELIEVE IN ALIENS ?
 By the end of this presentation , I hope all of you
start believing in Aliens.

3. QUESTIONS IN YOUR MIND :-
 Do they exist ?
 Where they live ?
 How do they communicate ?
 What are their genetic code & DNA?

4. INRODUCTION
 In addition to the biochemical basis of extraterrestrial life,
many have considered evolution and morphology.
 Science fiction has often depicted extraterrestrial life with
humanoid or reptilian forms. Aliens have often been
depicted as having light green or grey skin, with a large
head, as well as four limbs—i.e. fundamentally humanoid.
 Other subjects, such as Felines, insects, blobs, etc., have
occurred in fictional representations of aliens.

5. FACTS
 Ever since people have started observing the sky, there
has been the question of whether we are alone or not.
 Frank Drake, the scientist who invented the Drake
equation which is an equation to find the number of
civilizations in our galaxy, estimates that there are 10,000
communicating civilizations in our galaxy alone.
 NASA estimated in 1999 that there were 125 billion
galaxies in our universe.
 Very conservative estimates say that there are
approximately 6.25 billion life supporting solar systems in
the universe.
 It is very probable that there is a least one planet out there
that is currently supporting life.

6. ALIEN
 Extraterrestrial life that does not originate from
earth. it is also called alien life.
 These include hypothetical forms of life range from
simple bacteria like organism to being far more
complex than humans.
 The development and testing of hypothesis on
extraterrestrial life is known as “exobiology” or
“astrobiology”

7. WHAT IS LIFE ?
 The condition that
distinguishes animals
and pants from
inorganic matter ,
including the capacity
for growth ,
reproduction ,
functional activity , and
continual change
preceding death.

8. INTELLIGENT LIFE IN MILKY WAY
 Milky way galaxy contains an estimated one trillion planets.
Billions of these planets are earth size and in the habitable
or so called ‘goldilocks’.
 Radio and television signals from Earth have been leaking
into space since the middle of the 20th century. Traveling at
the speed of light, the first broadcasts from Earth are 65
light years away from our world. The first episodes of "Star
Trek," broadcast in 1966, are just now reaching Alpha
Cephei, 48 light years away.
 Many SETI programs are listening for similar signals
leaking into space from distant worlds. scientist believes
aliens are likely to use more direct methods of
communication, such as tightly focused beams.

9. DOES ALIEN LIFE EXIST ?
 5 Bold Claims of Alien Life
 Microbes in Meteorites
 NASA scientist Richard Hoover published a paper March 4,
2011, claiming to have found fossil evidence for cyanobacteria in
carbonaceous meteorites from outer space.
 Observed slices of meteorites through scanning electron
microscopes, and identified filaments and structures that he said
resemble the tiny single-celled algae.

10.  Arthur C. Clarke's Bushes on Mars
 Credit: NASA Science fiction author Sir Arthur C. Clarke,
famous for penning the novel "2001: A Space Odyssey," made
headlines in the year 2001 when he claimed that recently
returned photos from NASA's Mars Global Surveyor showed
evidence of trees and bushes on Mars.

11.  Allan Hills Meteorite
 When scientists announced in 1996 that they'd discovered
evidence of fossilized microbial life .
 Subsequent analysis of the research, on a meteorite called
Allan Hills 84001(ALH 84001), produced controversy a
meteorite from Mars.
 The evidence is still debated, and the space rock remains a
topic of ongoing research.

12.  Mars Canals
 The idea that Mars was traversed by a complex network of
canals was first put forward in 1877 by Italian astronomer
Giovanni Schiaparelli, and later popularized by astronomer
Percival Lowell.
 Lowell made intricate drawings of what he took to be canals
based on observations he made at his observatory in Flagstaff,
Arizona.

13.  Viking Lander Results
 In 1976 NASA's two Viking landers touched down on the
surface of Mars.
 The probes conducted a host of biological experiments,
including collecting samples of Martian soil to test for organic
compounds – the building blocks of life – and biosignatures
that could indicate the presence of microorganisms

14. SEARCHING FOR ALIENS
 The search for extraterrestrial intelligence(SETI) is based at
university of California in Berkley and has several radio
telescopes that are dedicated to listening out signals from
alternative life form.
 To detect ET civilizations, we must identify an artificial,
coherent signal that produce radio waves, the telescope
capable of this include Arecibo telescope in Puerto rico.
 Allen telescope array in hat creek,california

15. CONTINUE
 Project Cyclops was commissioned by NASA in 1970s
to investigate the signals ETI.
 IN 2006,European space agency launched the kepler
space observatory. it discovered 1901 confirmed
exoplanets.
 SEVENDIP(search for extraterrestrial visible emissions
from nearby developed intelligent populations) at
university of California are using electromagnetic
spectrum to search ET signals.

16. COMMUNICATION WITH
EXTRATERRESTRIAL INTELLIGENCE(CETI)
 It is a branch for the search of extraterrestrial intelligence that
focus on composing and deciphering messages that could be
understood by another technological civilization.
 In 2010,general purpose binary language used in lone signal
project to transmit crowdsourced messages to ETI.
 Two pioneer probes (pioneer 10 & 11) was launched in 1972 &
1973 depicting the location of earth and form of human body.
 In 1977,voyager probes were lunched with two golden records
that were inscribed with diagram depicting human form &
sound from earth.

17.  CONTINUE
 The Arecibo message transmitted in 1974 was a 1679 pixel
image with 73 rows and 23 columns. it shows double helix
structure of DNA,figure of human beings, our solar
system,etc..
 The cosmic call messages included bilingual image
glossary,text,video,audio .the message is designed with
noise resistant format. These messages were sent in 1999
and 2003 from evpatoria planetary radar.
 In 1974, they beamed their own signal out into space from
the Arecibo telescope in Puerto rico

18. ARECIBO
ALLEN

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20. CONCLUSION
 Despite the huge number of sightings ,abductions and
government sponsored cover –ups that have allegedly
taken place over the years, there is no proof that alien
life forms exists.
 with the latest calculations that have extended the
goldilocks zone, the area where life could happen
around stars. And then add the fact that life happens
spontaneously, even under the most extreme
conditions, and the idea of a Milky Way thriving with life
is impossible to deny.
 There's no doubt that, statistically, there's life out there.

21. VIDEO