Satellites
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Satellites have evolved significantly since Sputnik was launched in 1957. Early satellites were simple devices that gathered basic data and demonstrated orbital technology, while modern satellites can have complex systems and costs over $1 billion. All satellites require power, computers, communication systems, and attitude control to function in space. Though satellites provide important benefits like weather monitoring and GPS, the growing amount of space junk poses risks and may limit future launches if collisions become too dangerous.
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Satellites
Satellites have evolved significantly since Sputnik was launched in 1957. Early satellites were simple devices that gathered basic data and demonstrated orbital technology, while modern satellites can cost over $1 billion and provide advanced capabilities like global communications, weather monitoring, and GPS. However, the growth of space debris is a emerging environmental issue as defunct satellites and fragments threaten future space exploration due to collisions.
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The document discusses exploring space through electromagnetic waves and telescopes on Earth and in space. It covers early space missions including Sputnik and missions to study planets. Current and future space missions are exploring Mars and building space stations for long term living in space through international cooperation.
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Canadian contributions
Canada has made significant contributions to space exploration including the Canadarm, Canadarm 2, and Dextre. The Canadarm debuted in 1981 on the Columbia space shuttle and has been used on the Hubble Space Telescope and International Space Station to retrieve satellites and repair equipment. Canadarm 2 proved bigger, stronger and more dexterous. Dextre is a two-armed robot that performs repairs on the ISS otherwise requiring spacewalks. Canada also launched its first satellite Alouette 1 in 1962 and has since become a leader in communication satellite development and use.
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The document summarizes the history and future of space travel. It discusses (1) the early pioneers of rocketry including Robert Goddard, (2) the development of American spaceflight from satellites to the space shuttle, and (3) future technologies like momentum exchange tethers, plasma rockets, and fusion-powered rockets that could enable more efficient long-distance space travel and exploration.
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The document summarizes major events and accomplishments in space exploration from the 1950s to the present. It describes the early space race between the US and Soviet Union, including the first artificial satellite, first human in space, and US projects Mercury and Gemini. It then discusses the Apollo program that landed the first humans on the moon in 1969. Modern exploration topics covered include Voyager probes, the Space Shuttle, space stations, the Hubble Space Telescope, and Mars rover missions. Future exploration may involve renewed lunar studies and using the moon as a site for deep space missions.
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Space exploration has provided many benefits to humanity. It has expanded our scientific knowledge of the universe and challenged us to push the boundaries of what is possible. Some key benefits include the development of GPS, weather satellites, and the ability to monitor natural disasters from space. Additional applications include satellite communications, electronics, medicine, energy research, and the ability to detect asteroids that could pose a threat to Earth. Overall, the technologies developed for space exploration have wide-ranging applications that have improved areas like agriculture, health care, mining, and more.
Satellites
Satellites have evolved significantly since Sputnik was launched in 1957. Early satellites were simple devices that gathered basic data and demonstrated orbital technology, while modern satellites can cost over $1 billion and provide advanced capabilities like global communications, weather monitoring, and GPS. However, the growth of space debris is a emerging environmental issue as defunct satellites and fragments threaten future space exploration due to collisions.
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Satellites
Satellites have evolved significantly since Sputnik was launched in 1957. Early satellites were simple devices that gathered basic data and demonstrated orbital technology, while modern satellites can cost over $1 billion and provide advanced capabilities like global communications, weather monitoring, and GPS. However, the growth of space debris is a emerging environmental issue as defunct satellites and fragments threaten future space exploration due to collisions.
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The document discusses exploring space through electromagnetic waves and telescopes on Earth and in space. It covers early space missions including Sputnik and missions to study planets. Current and future space missions are exploring Mars and building space stations for long term living in space through international cooperation.
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Space exploration has provided many benefits to humanity. It has expanded our scientific knowledge of the universe and challenged us to push the boundaries of what is possible. Some key benefits include the development of GPS, weather satellites, and the ability to monitor natural disasters from space. Additional applications include satellite communications, electronics, medicine, energy research, and the ability to detect asteroids that could pose a threat to Earth. Overall, the technologies developed for space exploration have wide-ranging applications that have improved areas like agriculture, health care, mining, and more.
Satellites
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The document discusses the historical development of models of the solar system from the geocentric to heliocentric models. It then outlines key developments in space exploration technology from the 11th century to present day, including telescopes, rockets, satellites, space probes, and remote sensing. These technologies have enabled important missions like placing the Hubble Space Telescope in orbit, exploring other planets with probes like Voyager 2 and Cassini, and using satellites and remote sensing to study Earth and the environment.
29sept03 notes
This document discusses different types of spacecraft and space missions used to explore the solar system. It describes flyby missions like Voyager that pass by planets to study them without entering orbit. Orbiter spacecraft like Galileo are designed to enter a planet's orbit to study it up close for an extended period. Atmospheric probes and landers allow studying a planet's surface and atmosphere. Future technologies like ion propulsion could enable slower but more fuel efficient missions. Successfully exploring the solar system requires careful planning of spacecraft design, trajectories, and within budget constraints that can exceed $100 million per mission.
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Cosa hanno in comune un mattoncino Lego e la backdoor XZ?
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
ここ3000字までしか入らないけどタイトルの方がたくさん文字入ると思います。
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
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Satellites
- 1. Satellites 1
- 2. Presented by Steven Cornelius December 11,2009
- 7. History This is Sputnik. It was a 58cm 83 kg aluminum ball launched into earth orbit from Baikonur, Kazakhstan, on an R-7/Semiorka rocket by the USSR on October 4, 1957 It contained A battery A thermometer A radio transmitter Sputnik was filled with pressurized nitrogen gas, had 4 antennas which sent information back via short-wave frequency and only lasted 92 days in space.