The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place ...

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

CAPE CANAVERAL, Fla. (AP) — A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space. NASA already has next Artemis flight in its ...

Astronomers can use telescopes to find specific molecules in the atmospheres of neighboring planets, in nebulae – clouds of ...

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

Today is the day that astronomers, amateur stargazers and alien conspiracy theorists alike have been waiting for: interstellar comet 3I/ATLAS is as close to Earth as it will ever get. But lest you ...

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

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.

Experience the cosmic journey of NASA's Voyager spacecraft at Jawaharlal Nehru Planetarium's new sky show, "Voyager-the Never ...

Christopher Nolan's sci-fi movie Interstellar revitalized cinema set in outer space, but it also inspired this hidden TV gem ...