joi, 1 aprilie 2010

The day the Earth froze: An hour-long storm started a mini ice age, say scientists

- An hour-long hailstorm from space bombarded the Earth 13,000 years ago - plunging the planet into a mini-ice age, scientists claimed today.
The catastrophe was caused by a disintegrating comet and saw the planet sprayed by thousands of frozen boulders made of ice and dust. Full story:

* NASA: Sun's Nemesis Pelted Earth with Comets, Study Suggests: