The farthest spacecraft from Earth has shut down another instrument in the hopes of buying time for an upgrade that could ...

Research findings are available online in the journal Nature Astronomy. The original story “ Interstellar Comet 3I/ATLAS ...

The probe launched almost 50 years ago and is the farthest human-made object from Earth. Shutting down one of its scientific ...

Giant “interstellar glaciers” of water ice have been mapped across the Milky Way by NASA’s SPHEREx telescope, possibly laying ...

"Each interstellar comet brings a little bit of its history, its fossils, from elsewhere." ...

Astronomers analyzed the vapors coming off the comet when it neared the sun and found it had a lot of "heavy" water. That ...

Scientists have discovered a rare comet, 3I/Atlas, from outside our solar system. This ancient visitor is believed to be over ...

NASA's SPHEREx space telescope reveals widespread water ice in Cygnus X, showing how dust shields molecules in star-forming ...

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NPR's Scott Detrow talks with Regina Barber and Nell Greenfieldboyce about the Artemis moon missions, the "seismic quiet" during a solar eclipse, and the origins of a mysterious interstellar visitor.

The comet that rambled past us from another star last year likely originated in a cold, isolated corner of the galaxy that ...