The vast, simple hydrogen clouds formed after the big bang weren't enough to create life; it was the incredible life cycle of stars that forged the elements and compounds that comprise all complex matter--including life. | http://science.discovery.com/tv-shows/how-the-universe-works/
Catch new episodes of HOW THE UNIVERSE WORKS Tuesdays at 10/9c on Science!
Watch full episodes:
Subscribe to Science Channel:
Check out SCI2 for infinitely awesome science videos. Every day.
Download the TestTube app: