Astronomers have spent more than a century searching for a hidden world beyond Neptune, first called Planet X and now often ...

Our solar system may have hosted up to six giant planets in its first hundred million years, a new study suggests. The ...

Of all the potential super-Earths—terrestrial exoplanets more massive than Earth—out there, an exoplanet orbiting a star only 40 light-years away from us in the constellation Cetus might be the most ...

New photos of Neptune’s glowing auroras are the most detailed ever captured by NASA’s James Webb Space Telescope – but has also left astronomers with more questions. Auroras can happen on any planet, ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers have detected a new sub-Neptune exoplanet orbiting a bright G-type star. The newfound alien world, ...

The astronauts circling Earth on the Artemis mission sent back beautiful clear photos of the continents, clouds, and oceans.

A strange dark spot on Neptune has been observed from Earth for the first time, offering fresh clues into how these marks form. In 1989, NASA’s Voyager 2 space probe detected a shadowy region on ...

Two new studies point to peculiar possibilities for planetary evolution. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. New research suggests ...

Using ESO's Very Large Telescope (VLT), astronomers have observed a large dark spot in Neptune's atmosphere, with an unexpected smaller bright spot adjacent to it. This is the first time a dark spot ...