Britannica AI Icon

What is the difference between comets and asteroids?: Media

Images

Halley's Comet
Halley's Comet blazes across the night sky, March 19, 1986.
Β© Brian Donovan/stock.adobe.com
Asteroid Lutetia
The asteroid Lutetia as seen from the Rosetta satellite.
ESA 2010 MPS for OSIRIS Team MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA