aerodynamic stresses" of Venus' atmosphere, causing shock impacts similar to the blast which felled trees in Tunguska, Siberia, on June 30, 1908.Unlike Mars, Venus and Earth are both planets with good-sized atmospheres. On Earth, water wipes away the evidence of much of what happens to our planet's surface. On Venus, We can detect what the surface is and was like, and how the strange Venusian ...
Institution of Oceanography at La Jolla, Calif., has made an important discovery involving Lake Baikal in eastern Siberia.Lake Baikal is not the largest lake in the world. That honor belongs to Lake Superior, which is 31,500 square miles in area, whereas Lake Baikal has an area of 11,780 square miles. However, Lake Superior's greatest depth is 1,333 feet, whereas lake Baikal has a depth of 5, ...
portions of Pangaea that would have had temperatures as bad as, or worse than, that of the north central portions of Siberia and Canada, it turns out that these super-uncomfortable regions of Pangaea encompassed at least eight times the areas of such regions on Earth today.The places in Pangaea that would have been subjected to the highest temperatures were in what is now eastern Brazil and ...
didn't kill anyone because human beings had not reached the Americas yet. In 1908, a much smaller strike in central Siberia knocked down every tree for 20 miles around, but it was a desolate, uninhabited region and nobody was killed.In fact, there is no record in historic times of any human being being killed by a meteoric strike ─ but we can't stay that lucky forever.What can we do about it ...
a crater. Not everyone is going to accept that, though. The event remains a puzzle. Two points can be made. Central Siberia is about the only place such an event could have happened without human casualties. If it had happened at sea, it would have set off tidal waves. Almost anywhere else on land, people would have died, perhaps in vast numbers. Second, suppose such an event happened now ...
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