Deep-Space Photos: Hubble's Greatest Hits

The Hubble Telescopes Greatest Hits
The legendary space telescope celebrates its 20th year in orbit
STScI / NASA / Corbis

Butterfly Nebula
Also known as the Bug Nebula, the butterfly-shaped nebula consists of heated gas made up of oxygen and nitrogen, the whole of which tears through space at speeds in excess of 60,000 miles an hour. The dying star in the center is not unlike our sun.

Get the Latest Photos from Time.com
Get TIME photos and pictures of the week delivered directly to your inbox.