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

In July, researchers using the NASA-funded Asteroid Terrestrial-impact Last Alert System survey telescope in Chile made an ...

"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

Fresh orbital images and new geological analysis have revealed eight mysterious caves on Mars that appear unusually well ...

Harvard's Avi Loeb argues 3I/ATLAS shows signs of alien technology, from its 0.2% probability flight path to bizarre metal ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

Astronomers have spotted a Saturn-sized world drifting through a region of space that theory once said should be almost empty ...

From signs of life on Mars to an interstellar visitor and weakening dark energy, 2025 reshaped space science, raising the ...

A bumpy snailfish, Andean mouse opossum and ancient sea cow were just some of the many species described in 2025.

If nonliving materials can produce rich, organized mixtures of organic molecules, then the traditional signs we use to ...

Researchers have confirmed the mass of a free-floating planet thanks to a lucky convergence of ground- and space-based ...

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