Mars. From forming black holes to phantom dark energy, discover the cosmic mysteries astronomers uncovered last year.

Alien: Earth was only just renewed for a second season, but it's already poised to repeat one of Prometheus' worst mistakes. Alien: Earth is, by almost every measure, a big success. It has 94% ...

Interstellar comet 3I/ATLAS has become famous than most celebrities as it makes its way through our solar system. Although astronomers have been studying this rare visitor since its discovery in July, ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

An alien flying in from space aboard a comet would look down on Earth and see that there is this highly influential and ...

Learn about the 3I/ATLAS mystery as Harvard's Avi Loeb reveals 'wobbling jets' that could suggest the interstellar visitor is ...

The answer is as obvious as it seems – the Earth looks flat when you're standing on it, not cone-shaped. Visual evidence ...

Until now, scientists believed that Mars’ skylights – pits in the surface of mars – were formed by volcanic activity. But ...

Europa has a vast, saltwater ocean beneath its icy shell, with more than twice the amount of water in all of Earth’s oceans ...

A new computational model suggests that Uranus' and Neptune's cores may be less icy than their "ice giant" nickname suggests.

Harvard's Avi Loeb investigates whether the interstellar object 3I/ATLAS is leaking artificial propellants, suggesting that ...

Harvard's Avi Loeb warns interstellar comet 3I/ATLAS could be alien tech. Experts weigh in on planetary defence and the risks ...