This is SCIENCE FRIDAY. I'm Ira Flatow. The New Year's countdown has begun, not at the clock in Times Square but this one for two NASA probes set to orbit the moon this weekend. The twin spacecraft, GRAIL-A and GRAIL-B are expected to enter lunar orbit 24 hours apart, one on New Year's Eve, the other on New Year's Day.
Every year thousands of scientists visit Antarctica. Some study the gas plume from the active volcano, Mount Erebus. Others map the ever-changing ice caves. But they all face the same challenges of working on extreme terrain. Two researchers and a photojournalist discuss how research is done on the frozen continent.
Many have fallen of the new year's resolution bandwagon soon after adopting a new diet or quiting smoking. So how can you achieve year-end goals and start the year on a positive note? Roy Baumeister, co-author of Willpower: Rediscovering the Greatest Human Strength , has some tips.