December 20, 2011 9:22 pm New Planets About Same Size as Earth Chief Scientist Wes Traub from NASA’s Exo-Planet Exploration Program talks about the major discovery announced Tuesday — a pair of planets outside our solar system that are nearly Earth’s size. US & World Videos 1:41 ‘The Mummy' turns 25: Remembering the Brendan Fraser classic 1:15 Anna Nicole Smith's look-alike daughter Dannielynn Birkhead attends 2024 Kentucky Derby 3:27 Here's one of the luxurious suites your favorite A-list celebs are getting ready in for the Met Gala 3:27 Dua Lipa claps back at viral ‘give us nothing' meme during ‘SNL' hosting debut 1:07 Britney Spears spotted as authorities respond to alleged hotel incident