Comets

A comet got really close to the Sun and completely freaked out

It literally blew chunks.

By Phil Plait | 

5 months ago

The biggest comet ever seen shows off its hair for Hubble

UN271 is ~137 km across, bigger than any other object like it ever seen.

By Phil Plait | 

7 months ago

Is Ryugu a dead comet masquerading as an asteroid?

The near-Earth object looks like an asteroid but may be an ice-free comet

By Phil Plait | 

8 months ago

If you're a comet, it's not easy being green. Now we know why.

Green color in comets is all in its head, not its tail.

By Phil Plait | 

11 months ago

Glass reveals a ginormous comet exploded right above the Atacama desert 12,000 years ago

We just learned a comet exploded over the desert some 12,000 years ago, and the evidence was trapped in glass.

By Elizabeth Rayne | 

1 year ago

How comets spawn could finally be demystified by a possible mission to a Centaur

Researchers are now proposing a mission that will watch a Centaur evolve from asteroid to comet.

By Elizabeth Rayne | 

1 year ago

The case of the Centaurs that didn't bark in the night

By Phil Plait | 

1 year ago

Why did this comet disintegrate when its sibling was able to hold it together?

By Phil Plait | 

1 year ago

This asteroid fizzes like Pop Rocks in space (and could almost pass for a comet)

By Elizabeth Rayne | 

1 year ago

Don’t panic! But a gigantic comet is currently inbound toward the Sun

By Phil Plait | 

1 year ago