Cosmic Impact May Have Caused Prehistoric ‘Big Freeze’
Scientists say they may have found a link between a dramatic climate shift nearly 13,000 years ago and an asteroid or comet that struck the Canadian province of Quebec. Researchers at Dartmouth College say the comet/asteroid strike took place at the beginning of a global cooling event known as the Younger Dryas stadial or the […]
NASA Launches Powerful Earth-Observing Satellite
NASA’s latest Earth-observing satellite rocketed into space today continuing a program which began more than 40 years ago. An Atlas V rocket carrying the Landsat Data Continuity Mission (LDCM) spacecraft launched from Vandenberg Air Force Base in Lompoc, California. NASA officials called today’s launch “picture perfect.” The spacecraft is now on its own after a […]