The wet dress rehearsal for Artemis 2 — a critical prelaunch fueling test of the mission's Space Launch System (SLS) rocket — ...

Read an excerpt of this deep-space mystery from the prolific writer of 'Whalefall' and 'Angel Down.' ...

The spaceship house in Colorado has mystified I-70 drivers since 1966. Learn the true story behind this architectural icon's Hollywood fame.

Scientists confirmed that the interstellar comet 3I/ATLAS, which passed closest to Earth in December 2025, showed no detectable technosignatures strong enough to suggest it is an alien spacecraft.

A team of astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spaceship. The comet was confirmed in July 2025 as the third known object to enter our solar ...