Scientists discovered WASP-121b, an exoplanet where metals rain from the sky. Located 858 light-years away, this 'ultra-hot ...

What is space weather, what causes it, and how does it affect humans? Physicist Robyn Millan, who co-chaired a recent ...

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power ...

NASA’s Juno spacecraft has uncovered an immense volcanic hot spot on Jupiter’s moon Io, surpassing any previously recorded ...

The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

WASP-121b is like nothing in the solar system, raining liquid metal and being puffy like a marshmallow. The origins of these ...

The closest of the asteroids to us—estimated to be about the size of a car—is whizzing through space at 27,358 miles per hour ...

The acid yellow moon Io that orbits Jupiter may be less than 30% the size of Earth, but is considered the most volcanic body ...

The risk of impact is likely to drop to zero as observations of Asteroid 2024 YR4 continue.

On Feb. 24, from west to east, you can see Mercury, Saturn, Neptune, Venus, Uranus, Jupiter and Mars, all spanning 117.5°, ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...