Astronomy

The Sombrero Galaxy returns in a revamped Hubble image

At most, its oceans may contain biomass equivalent to a small dog

An explanation for the abundance of super-Earths

How planets gain and lose atmospheres might give us a new map of where to look for life

Are the mysterious stars clues to one of the greatest mysteries in the universe?

It starts with static electricity and dust swirling around young stars

A scientist floats a new idea for exploring Earth’s twin

Why exomoons could sustain ET as well as any exoplanet

The pull of the planets is still one of our best bets for space exploration

It’s a bigger challenge than we thought

Stellar bodies from other galaxies are all around us.

Earth's most distant space probes prepare for their inevitable long night.