Scientists have determined that our sun is a middle-aged star that will die in 5 billion years.
Added: Apr 18, 2008
Views: 27749 Views
Runtime: 01:59
ATTENTION! We recently updated our privacy policy. The changes are effective as of September 10, 2008. To see the new policy, click here. Questions? See the policy for the contact information.
Copyright © 2009 Discovery Communications, LLC. The number-one nonfiction media company.