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.
Brown dwarfs are thought to be the missing link between planets and stars, with masses up to 80 times that of Jupiter.
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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