GRAIL "Rings" in 2012 on This Week @NASA

NASA's Gravity Recovery And Interior Laboratory mission's two spacecraft achieve lunar orbit at beginning of new year and begin their study of the moon, from crust to core. Also, FIRST season starts; Booster Day; Commander's Comet; Booms and Whispers; and Curiosity's RAD! Also, Aggies get shuttle sim; Butch & The Titans; and STS-81 anniversary.