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Mangroves move inland as seas rise

Adapting to the damaging effects of climate change, plants are gradually moving to where temperatures are cooler, rainfall is greater, f...

3/04/2009

Earth had close encounter with a 40-yard-wide asteroid

Monday's asteroid likely "would produce a tsunami" had it landed in an ocean. Asteroid 2009 DD45, thought to be between 68 and 152 feet across, passed within 38,000 miles of Earth Monday - a close call in astronomical terms. It raced by Earth almost seven times closer than the moon at 6:44 p.m. New York time. "NO OBJECT OF THAT SIZE, OR LARGER, HAS BEEN OBSERVED TO COME CLOSER TO THE EARTH."
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