Until the 2010s, there was a remote possibility that the Earth would be struck by Apophis, a NEO (Near-Earth Object) asteroid discovered in 2004 by planetologist David Tholen of the…
meteorit
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Fourth, morphometry based on the comparative analysis of terrestrial craters and those observed on the Moon or Mars for example. So an impact crater is theoretically 24 times the size…
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Geologists from the University of New Brunswick in Canada tell us that at least six clues allow us to authenticate a meteorite impact, based both on macroscopic morphometric and stratigraphic…
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Astronomers have been disinterested in the study of meteors for centuries, likening them to an atmospheric phenomenon similar to lightning. It was only at the end of the 18th century…
From Dust to Meteorite
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Meteors and meteorites are two nouns which in fact define the same interplanetary object, with the difference that the second reaches the ground, as we explained in the page dedicated…
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As well as we have explained, scientists are studying meteorites for information on the events that occurred during the birth and the primordial evolution of the solar system. The theory…
Metamorphism and Age
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In addition to long-life radionuclides, a number of short-life radionuclides were present in the primitive solar system. Most of them have half-lives below a few million years. They have been…
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