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 farthest spacecraft from Earth has shut down another instrument in the hopes of buying time for an upgrade that could boost the aging probe’s impressive lifespan.

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

The interstellar comet 3I/ATLAS changed significantly as it flew by the sun last fall, astronomers have discovered.

Texas A&M researchers have demonstrated micron-scale laser-powered 'metajets' capable of 3D motion without contact, potentially enabling interstellar travel within decades. Meanwhile, Rocket Lab's ...