Tuesday, January 03, 2006

NASA's Chandra X-ray Observatory Looks Back at Earth

SpaceRef - Your Space Reference

"In an unusual observation, a team of scientists has scanned the northern polar region of Earth with NASA's Chandra X-ray Observatory. The results show that the aurora borealis, or 'northern lights,' also dance in X-ray light, creating changing bright arcs of X-ray energy above the Earth's surface. "