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NASA’s Spitzer Space Telescope is retiring after 16 years. Its incredible infrared images revealed nebulae and galaxies as we’d never seen...
NASA's iconic Spitzer observatory is ending its mission. Look back at its awe-inspiring discoveries and images.
NASA has big plans for the 2020s, from powerful new space telescopes to a hunt for alien life on a moon of Saturn. Here’s the timeline.
One year ago, NASA announced it would send astronauts back to the moon. Since then, new spacecraft and telescopes have filled its plans for the 2020s.
Saturn now has more moons than any other planet in our solar system. You can suggest names for 20 newly discovered moons in a Twitter contest.
Astronomers measuring heat in Uranus' atmosphere stumbled upon its rings and measured their temperature for the first time: -320 degrees Fahrenheit.
Dead planets can ‘broadcast’ for up to a billion years, and they could tell astronomers what will happen after our sun blows up
Finding dead planets' radio broadcasts can help scientists learn how the sun's death in 5 billion years will affect our solar system.
The Milky Way's S-shaped curve is still a mystery. But now scientists have mapped it in detail by measuring the distances of thousands of stars.
Astronomers have discovered a potentially habitable world just 31 light-years away, thanks to NASA’s planet-hunting telescope
TESS, a space telescope searching for alien worlds, helped astronomers discover a potentially watery new planet. It's one of the nearest known worlds.
NASA’s newest planet-hunting telescope just discovered a ‘super-Earth’ and 2 ‘sub-Neptunes’ less than 75 light-years awa...
TESS, the space telescope searching for alien worlds, has discovered three nearby exoplanets that could offer clues about how planets form.
NASA has released the first images from its new orbiting space telescope. TESS, or the Transiting Exoplanet Survey Satellite, could discover thousands of new planets.
Detecting life on other planets remains an elusive goal. Scientists at the University of Washington think a new kind of chemical test might help.