Last Updated: Saturday, October 20, 2012, 16:17
A comprehensive study of hundreds of galaxies has revealed an unexpected pattern of change that extends back 8 billion years or more than half the age of the universe.
Last Updated: Saturday, October 6, 2012, 12:04
The shooting of two US Border Patrol agents near the Arizona-Mexico border may have been a case of friendly fire, a union chief for border agents and law enforcement officials said.
more videos >>
