A three-armed spacecraft is rushing to the rescue of a NASA telescope that’s in danger of crashing back to Earth.

"Victus Haze proves that responsive launch and responsive characterization are a single capability. Acquire a new object ...

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

When the U.S. was born, humanity was still seven years away from balloon-borne flight. Where might we be another 250 years from now, should the nation be fortunate enough to survive that long?

Avi Loeb vows to brief public and create website to share findings of team tasked with investigating origins of mysterious ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

Well, as a matter of fact, I have often had close encounters with aliens, only I never bothered to mention it here. For this ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth.

Based on evidence collected by the James Webb Space Telescope, researchers have found that interstellar comet 3I/ATLAS could ...