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The Hubble Space Telescope was launched to the Earth orbit in 1990 over 25 years ago. Space Spitzer Telescope, Hubble's infrared sister, celebrates his 15th anniversary in space. Multiple X-ray observers, including Chandra X-ray Observatory, XMM-Newton, and Nuclear Spectroscopic Telescope Online (or NuSTAR) are also aerial surveillance of space rotation, above the ground here on Earth. In the next decade, NASA plans to launch the James Webb Space Telescope, the next generation of Hubble and Spitzer, which will be the Sun orbit.
There are restrictions on putting a telescope in space. Initially, it can not be too big because it must fit inside the rocket that will launch it. Our repair capability is also limited if anything goes out of place (not on wood). And finally, to declare the obvious, it's pretty expensive. So why do we even do it?
The main reason we give to the telescopes into a space is to go around the Earth's atmosphere so that we can have a clearer look of the planets, stars and galaxies that we are studying. Our environment acts as a protective blanket means only a little light by resisting others. Most of the time is a good thing. SPF could not protect us if we were bombed by high energy X-rays or gamma rays whenever we went out. But that defense means that we are not lucky in collecting those types of light for studies in the ground. We can not just ask the atmosphere to make any special exceptions for light that we would hope to reach our telescopes.
»Continue reading" Why Do We Give The Telescope in Space? "On QuickAndDirtyTips.com