Supreme Leader Ayatollah Ali Khamenei speaks in a ceremony to mark the Shiite holiday of Eid al-Ghadir, in Tehran, Iran, ...

Interstellar comet 3I/ATLAS reveals ancient secrets and strange chemistry as the largest object of its kind ever tracked.

Alien technology or a natural comet? The post Scientists Announce Results After Scanning 3I/ATLAS for Alien Signals appeared ...

Harvard Professor Avi Loeb suggests the interstellar object 3I/ATLAS could be an alien probe. Explore the 'anti-tail' mystery ...

The Miller Point overlook offers perhaps the most comprehensive view of the park’s dramatic landscape. From this elevated vantage point, you can see the full expanse of the gorge, with its countless ...

NASA lost communication with its MAVEN probe nearly a month ago, and efforts to re-establish a connection have been futile.

NASA’s Mars rover finds organic signals in mudstone that resemble microbial activity, sparking new debate over life on the ...

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

Whether Artemis ultimately fulfills its promise of sustained lunar exploration, or is reshaped by politics, budgets and ...

Whew. 2025 is coming to a close, 12 months after it started. But was it just us, or did this particular lap around the sun ...