How does NASA know it's time to end a mission? For the Spitzer Space Telescope, the agency can blame it on the spacecraft's juice.
A 16-year NASA mission that painted the universe in infrared light will come to an end this month, as the Spitzer Space Telescope takes its final observations on Jan. 29.
A tiny satellite studying alien worlds may be gone for good, but during the two years the spacecraft operated, it laid the foundation for what may become a new way of finding exoplanets.
It's the award no one wanted to win: 2019 was the second hottest year on record, government scientists confirmed yesterday (Jan. 15).
Heated conversations at the American Astronomical Society's January meeting are usually about stars and galaxies, distant worlds and elaborate calculations.
When scientists search for alien planets, they get a special thrill when they find one that seems to reflect our own world back to us.
Staff at Puerto Rico's iconic Arecibo Observatory are monitoring the facility for potential damage in the midst of a spate of earthquakes rocking the island.
Astrophysicists are deep in the throes of a process they conduct every 10 years to set scientific priorities for the field; the results could determine which missions fly and which don't.
A U.S. facility — designed in part to solve the mysteries of dark matter — now officially carries the name of the scientist who concluded that the elusive substance must exist.
Astronomers kicked off 2020 by welcoming the 30th anniversary year of NASA's venerable Hubble Space Telescope in Honolulu at their largest annual gathering.
NASA's next flagship space telescope is still on track for a launch in March 2021 despite longstanding scheduling concerns, according to agency personnel.
The sun is right there in the name of NASA's Parker Solar Probe, but a second mission of opportunity may make the spacecraft just as vital to Venus scientists as to those studying our local star.
NASA's quest to return humans to the moon could boost a field of research that might not seem particularly lunar in nature: cosmology.
The uncrewed Boeing Starliner test capsule that launched today won't reach the International Space Station — but astronauts scheduled for the vehicle's next flight aren't worried.
The troubled "mole" on NASA's InSight Mars lander is moving again, even as scientists working on the robot's seismometer ponder new marsquake mysteries.
What do Van Gogh's "Starry Night," traditional Ethiopian coffee ceremonies and a river in Alaska have in common? All are now commemorated in the solar systems around ours.
Everyone seems to want to go to the moon. Before they get there, though, radio astronomers would like them to think about what wavelengths they use to light the way.
As finding alien worlds has gotten easier, learning every single detail scientists can has become, perhaps surprisingly, a bit of a waste of the precious time of instruments and computers alike.
NASA Administrator Jim Bridenstine showed off the completed core stage of the first ever Space Launch System rocket during a news event held today (Dec. 9).
Champagne is supposed to be bubbly. So is a foaming bath. But a mixture designed to mimic the frigid lakes on an alien moon? That's a little more surprising.
Gennady Borisov stunned the astronomical community earlier this year when he announced that he had spotted an interstellar comet dashing through our solar system.
Boeing, United Launch Alliance and NASA have completed a key test as the Starliner capsule approaches its first flight, which is now scheduled for Dec. 20.
Maybe you'd like to deride this seal's fashion choices. Here's why you shouldn't: While this isn't the most ornate fascinator ever to grace a photo shoot, it sparkles with science.
Scientists have caught their best-ever look at a comet belching out ice, dust and gas — and the observations came courtesy of a mission designed to hunt for alien worlds.
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