Which exomoons could possibly be crawling with life?

If some moons in our solar system might be habitable, then...

By Elizabeth Rayne 22 min ago

No planets seen for Sirius B, the nearest white dwarf to Earth

It may have eaten them long ago.

By Phil Plait 6 days ago

Exocomets swarm around an alien star… yet seem oddly familiar

Comets around another star look a lot like local ones.

By Phil Plait 1 week ago

A baby binary star may be forming three different planetary systems around it

SVS 13 is a binary star overachiever.

By Phil Plait 4 weeks ago

Hubble looks at a planet where vaporized rock may rain out as molten rock at night

Better pack a titanium umbrella.

By Phil Plait 1 month ago

The space weather forecast might also predict aliens

Extraterrestrials are now in the forecast. 

By Elizabeth Rayne 1 month ago

Psst! Wanna see an actual Hubble image of a planet forming around a nearby star?

Theorized exoplanet AB Aurigae b now directly seen in photos.

By Phil Plait 1 month ago

Astronomers discover a huge expanding debris cloud from two colliding protoplanets!

When worlds collide, they make a lot of dust. A lot.

By Phil Plait 2 months ago

When is a planet not a planet? When it’s actually a star

Astronomers find a handful of planets are actually stars.

By Phil Plait 2 months ago

5,000th exoplanet found!

The first was announced in 1992. What a difference 30 years makes.

By Phil Plait 2 months ago