On May 22, 2026, the Pentagon released a second batch of previously classified photos and videos showing what appear to be ...

Scientists may have discovered how extraterrestrial civilizations could actually detect and find Earth.

Alien civilisations may have just been given a 400,000-fold boost in their chances of finding humans, according to a new ...

Astronomers and social media users have been debating the newly discovered interstellar object 3I/ATLAS after viral videos ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Every year, companies and space agencies launch ...

Space is unforgiving about inefficiency. Every kilogram launched costs somewhere between $2,000 and $10,000 depending on the vehicle – and that’s on a good day with a favorable contract. In that ...