Scientists have discovered a mysterious hole on the surface of Mars, and they have no idea what lies inside it. This pit, ...

I/ATLAS is a natural celestial object with all the qualities typical to a comet. It doesn't just belong to our solar system.

Interstellar comet 3I/ATLAS reveals ancient secrets and strange chemistry as the largest object of its kind ever tracked.

Fresh orbital images and new geological analysis have revealed eight mysterious caves on Mars that appear unusually well suited to protect traces of life. Together, these caverns, portals and ...

The Vera C. Rubin Observatory began studying the heavens from a Chilean mountaintop last spring, and its "first light" images ...

A test model of the Perseverance rover, designed to explore the surface of Mars, sits in a garage at NASA’s Jet Propulsion ...

Astronomer Avi Loeb suspects this interstellar visitor is a piece of alien technology, citing its unusual traits and the ...

A new study reveals that tiny fragments of Earth's atmosphere are transported to and absorbed by the moon via gusts of solar ...

Scientists have discovered 26 new bacterial species that survived the extreme sterilization protocols of NASA cleanrooms ...

Fans of the Predator franchise should check out these 15 other movies featuring alien threats, outer-space terror, and ...

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

From volcanic landscapes to world-class observatories, a journey through the Canary Islands reveals a night sky unlike ...