Adapting to the damaging effects of climate change, plants are gradually moving to where temperatures are cooler, rainfall is greater, f...
Edmonton: On February 17, a huge fireball burst across the sky over the small Arctic village of Resolute. "This was humungous. Had there been a full moon that night, I'm sure it would have covered three quarters of it. I bet you it lasted six to eight seconds before it disappeared behind the hill on the edge of town. There were all kinds of colours bursting out of it. The tail lasted a good two hours." "When it finally went down, you could see this big white cloud in the sky that just sat there for the longest time. It was the event of the century." "The Inuit up here have been on the radio talking about it for days." The fireball may have been as big or bigger than the one that crashed onto frozen Tagish Lake in the Yukon several years ago. That yielded a cluster of rare carbonaceous chondritese - rare meteorites that contain both water and organic compounds. Scientists covet these as clues from the early solar system. The Tagish Lake fireball came toward Earth as a 100-tonne space rock. It was so big that its fiery atmospheric entry allowed scientists to calculate its orbit before it hit the Earth. The Tagish Lake space rock exploded with nearly one-tenth the atmospheric blast power of the Hiroshima nuclear bomb.