Scientists have found troubling signs that another Earth — the mysterious Planet Y — may be hiding on the edge of our solar ...

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 ...

Scientists discovered a mini-Neptune with a heavy atmosphere, revealing new clues about how planets migrate through young ...

Neptune sits billions of kilometers from the Sun, where it receives only a tiny fraction of the sunlight Earth gets.

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 ...

Neptune from Voyager 2 spacecraft, c1980s. The Voyager 2 space probe was launched by NASA in August 1977. The purpose of the Voyager programme was to study the outer Solar System. Artist NASA. (Photo ...

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the northern hemisphere), but be sure to check my main feed for more ...

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 ...