Paul K. Martin, the son of Pittsburgh residents Jean and George Martin, has been confirmed by the U.S. Senate to serve as inspector general of NASA. (Today)

Hundreds of private e-mails and documents hacked from a computer server at a British university are causing a stir among global warming skeptics, who say they show that climate scientists conspired to overstate the case for a human influence on climate change. (Yesterday)

Physicists returned to their future on Friday. About 10 p.m. outside Geneva, scientists at CERN, the European Center for Nuclear Research, succeeded in sending beams of protons clockwise around the 17-mile underground magnetic racetrack known as the Large Hadron Collider, the world's biggest and most expensive physics experiment. (Yesterday)

With less than three weeks remaining before negotiators gather in Copenhagen to hammer out a global response to climate change, a rapid-fire succession of countries are unveiling national plans that serve as opening bids for reining in heat-trapping emissions. (11/20/2009)

Science has never given much credence to claims that you can learn French or Chinese by having the instruction CDs play while you sleep. If any learning happens that way, most scientists say, the language lesson is probably waking the sleeper up, not causing nouns and verbs to seep into a sound-asleep mind. (11/20/2009)