If an alien in the Alpha Centauri star system were craving pizza, it would take tens of thousands of years to deliver it ...

A technique inspired by the film Interstellar suggests a new way of communicating backwards in time, but it could help ...

The "Alien," "Predator," and "Terminator" franchises play host to three of the greatest sci-fi villains of all time, but only ...

We spoke to a genuine astrophysicist about the accuracy of Star Trek's approach to interstellar travel, the holodeck, and the ...

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 ...

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

Scientists map frozen water across the Milky Way, revealing vast “interstellar glaciers” that may help seed new planets and ...

Whether it's robotic rovers heading to Mars or, one day, a crew of astronauts, a round-trip journey is an incredibly long one ...

A Space Odyssey to the dystopian masterpiece The Matrix, these sci-fi movies are among the most important of the genre.

Scientists studying 3I/ATLAS have detected unusually high levels of heavy water, indicating it formed in an extremely cold ...