Latest H. Jay Melosh Stories
Researchers are reporting in the journal Nature that tiny "spherules" embedded in layers of rock have given them details about Earth's asteroid impacts.
Scientists at Purdue University and Imperial College London have revised their popular â€˜Impact Effects Calculatorâ€™, which allows anyone to calculate the potential damage a comet or asteroid would cause if it collided with the Earth.
The iron meteorite that blasted out Meteor Crater almost 50,000 years ago was traveling much slower than has been assumed, University of Arizona Regents' Professor H. Jay Melosh and Gareth Collins of the Imperial College London report in the cover article of Nature (March 10).
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