Complex, intelligent life in the galaxy appears vanishingly rare, with the nearest possible civilization perhaps 33,000 light ...

Tesla CEO Elon Musk has started selling unsold Cybertruck inventory to his own companies, including SpaceX and xAI.

There has been a lot of talk among people who study and follow such things about whether or not interstellar comet 3I/ATLAS is an alien spacecraft. Most ...

I/ATLAS's chemical composition, upcoming invisibility, and trajectory suggest to experts that it is alien technology, but ...

Unistellar marks its 10th anniversary with a call to stargazers: observe 10 comets this autumn in partnership with the SETI ...

From Martian rocks that may hold traces of past life, to fragile asteroids that explode in Earth’s atmosphere, to bold ideas ...

Maynard Owen Williams was National Geographic's first foreign correspondent, and in 1923 he was on hand for an event the ...

All children under age 5 living in Santa Clara County are invited to be part of the free program. Imagination Library titles ...

We actually know very little about what's going on inside Uranus and Neptune, causing researchers to propose that these ...

Lacki’s study, “Artificial Broadcasts as Galactic Populations,” has been posted to the preprint science journal arXiv. In it, ...

Harvard astronomer Avi Loeb currently says there is a 30-40 percent chance the object is not natural in origin.

We may have been wrong about how the Moon's largest crater, the South Pole-Aitken basin, formed roughly 4.3 billion years ago ...