When we first began searching for planets around other stars, one of the surprising discoveries was that there are planets orbiting white dwarfs. The first exoplanets we ever discovered were white ...

"The climate of this planet is extreme and nothing like that of Earth. The planet's dayside is so hot that elements typically thought of as 'metal' are vaporized into the atmosphere." ...

Using the Keck Planet Imager and Characterizer (KPIC), astronomers have performed high-resolution spectroscopic observations ...

Bright yellow deposits in Consus Crater provide new evidence of Ceres' cryovolcanic history, reigniting the debate over ...

Telescopes don't come any smaller than the Dwarf 3, but does its portability come at the cost of image quality? Read the ...

A four-year-old boy's curiosity about planets has inspired him to write his first children's book. Viaan Mundeja-Gupta, who ...

When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

Earth is home to some truly bizarre and breathtaking landscapes — here are 20 that look straight out of an alien world.

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

Scientists studying samples that NASA collected from the asteroid Bennu found a wide assortment of organic molecules that shed light on how life arose.

The exoplanet HD 20794d swoops in and out of its habitable zone every few hundred days, making for an extreme climate.

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