Comet 3I/ATLAS, the third confirmed interstellar object ever detected passing through our solar system, was caught shedding ...

Arnie said, "Get your ass to Mars", but is it really a good idea? We asked the experts about our Martian future.

Declassified documents released in 2013 during Obama’s presidency acknowledged the existence of Area 51, saying that the secret government space was used as an aerial testing ground for U.S.

This February’s alignment spreads Mercury, Venus, Neptune, Saturn, Uranus and Jupiter across the western to eastern sky after sunset on Feb. 28. All six will appear shortly after sunset, according to ...

The catch: according to Space.com, four of those planets — Mercury, Venus, Saturn and Neptune — are very close to the Sun.

AI optimists envision a future where artificial general intelligence (AGI) surpasses human intelligence, but the path remains riddled with scientific and logistical hurdles.

Pluto's discovery by Clyde Tombaugh, key political changes in Scandinavia and America, plus cultural and scientific milestones.

A solar storm is a catchall term that describes any disturbance in the sun that involves the violent ejection of solar material into space. This can come in the form of coronal mass ejections, where ...

That distinction, survival versus livability, is the hard truth behind headlines about stars consuming planets. A world does not need to be swallowed to become uninhabitable. Long before any terminal ...

They show up as a mathematical solution in general relativity, basically as a time-reversed version of a black hole. Some ...

Astronomers have finally figured out how the most common types of planets in our galaxy are formed—by watching a set of baby planets grow up in real time. These worlds, found in a young star system ...