The Subaru Telescope has made an exciting discovery: a small body beyond Pluto, with implications for the formation, evolution, and current structure of the outer solar system.

The seventh planet in the solar system has an average temperature of just -195°C, unsurprising given it’s 1.8billion miles ...

Because Pluto is so dim, you need a telescope to see it. “A backyard telescope could do it under the right conditions,” says ...

In 2018, an independent researcher bought a piece of space rock from a vendor in Morocco. It could change what we know of the Solar System's formation.

Scientists discover 3I/ATLAS, a possible 7-billion-year-old comet from deep space. It may rewrite what we know about the ...

The discovery challenges findings made by Voyager 2, which collected data suggesting Uranus, unlike other giant planets in ...

A team of international astronomers, including a University of Michigan doctoral student, were the first to publish the ...

Two meteorites found in the Sahara in 2023 might be from Mercury, a study suggests, but doubts remain due to how little is known about the planet closest to the sun.

WASP-121b, an already unusual planet, might have a remote origin that explains some of its peculiar properties—from iron rain ...

Volcanic planets with static crusts, called Ignan Earths, can maintain liquid oceans and temperate climates favorable to life.