GREENBELT, Md., May 2, 2012 /PRNewswire-USNewswire/ -- The public is invited to a free talk called " Investigating Worlds Around Other Stars: Progress Towards the Discovery of Another

NASA's high-flying ER-2 Airborne Science aircraft has concluded its four-week deployment to validate data acquired by the Multiple Altimeter Beam Experiment Lidar (MABEL) laser altimeter over the Greenland ice cap and surrounding sea ice fields.

An international team of scientists reported in the journal Nature on Thursday that warm ocean currents are the culprit behind recent ice loss in Antarctica.

http://www.nasa.gov/topics/earth/features/currents-ice-loss.html

After an all-night flight from its home base in Palmdale, Calif., a NASA ER-2 high-altitude environmental science aircraft arrived in Keflavik, Iceland late Monday morning to begin a series of flights over the next five weeks that are intended to validate the accuracy of a new laser altimeter named MABEL.