Harvard scientist claims object 3I/ATLAS may be alien tech. The 12-mile body is travelling toward Earth at 135,000 mph, ...

The paper presented several anomalous characteristics of the object, which could indicate that it is not a comet at all but instead a directed craft.

Supposing humanity is still around billions of years from now, scientists say it’s unlikely we would notice any distinct changes while the big crunch takes place.

OXFORD – University of Mississippi astrophysicist Anuradha Gupta has been selected among 15 recipients worldwide for the 2025 ...

AI Overlords, Space Empires, and Silicon Valley’s Crusade to Control the Fate of Humanity, Adam Becker probes the technocrat ...

UA astronomers Roger Angel and Nick Woolf had another idea and, with Strittmatter's acquiescence and a little startup money, Angel began a series of increasingly costly experiments that led to the ...

Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

3I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the galaxy.

The team launches rockets at the invisible magical bubble over the ranch in a new episode of "The Secret of Skinwalker Ranch" airing on Tuesday, June 24.

For Star subscribers: Scientists unveiled the first images from what they are calling “the greatest astronomical discovery machine ever built," and there are plenty of Tucson connections.

The World’s Largest Camera Is About to Unveil Its First Photos of Space. Here’s How to Follow Along With a Live Stream The revolutionary Vera C. Rubin Observatory will unveil new insights ...