NASA's infrared eye on the universe -- the Spitzer Space Telescope -- has marked its tenth year in space and it is still going strong.
Fifteen years ago, NASA's Chandra X-ray Observatory was launched into space aboard the Space Shuttle Columbia.
Organic molecules essential for life have been detected in another hot gas planet outside the solar system, within a year by scientists from the National Aeronautics and Space Administration.
The planets closely circle a dwarf star named Trappist-1, which at 39 light years away makes the system a prime candidate to search for signs of life.
The finding may help understand the types of planetary systems that exist beyond our own.
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