New planet is one of the best ever hopes for seeing alien life, scientists say - Less than 20 light years away, we could soon ...

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

A chemical "anomaly" revealed through an analysis of meteorites may have led to finding the first existing evidence of "proto ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

New research from Rice University suggests that the giant planet Jupiter reshaped the early solar system in dramatic ways, ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

The universe has quasi-moons, mini-moon, and moonlets, but no official definition of what counts as a moon.

We teamed up with the makers of Frozen Planet II for a science Live Lesson exploring the coldest places on Earth and the ...

Astronomers are investigating a strange class of exoplanets known as eccentric warm Jupiters — massive gas giants that orbit ...

In “Citizen Science in Astronomy (Part 7),” SETI Institute astronomers Dr. Franck Marchis and Dr. Lauren Sgro highlight two rare and compelling discoveries and the crucial role of citizen scientists ...

Earth has breached a critical boundary for ocean acidification, with potentially grim effects for ocean ecosystems and human ...

How can artificial intelligence (AI) help astronomers identify celestial objects in the night sky? This is what a recent ...