Biggest Crater in the Solar System Found on Mars

For a small planet , Mars sure enough screw how to go big . It ’s about one-half as great as Earth , but it ’s got the hugest volcano in the solar system in the Arizona - sized Olympus Mons and the grandest of all canon in the 7 kilometer - rich Vallis Marineris . Now it can lend its cool , most - braggable rubric : the Biggest Impact Crater in the Solar System . In a novel written report out in Nature , scientists have shown that Mars was probably hit by an asteroid the size of it of the Moon sometime in its early history , which lefta crater the size of the planet ’s entire northerly hemisphere .

scientist have be intimate for years about the Borealis Basin — a region of Lowlands of Scotland that take up the northerly half of Mars . Some thought a volcanic cataclysm cause the crater , while other speculated it could have been an wallop . With the aid of detailed geologic reading from the Mars Reconnaissance Orbiter and Global Surveyor , they ’ve been capable to solve the enigma , concluding that something struck Mars with the force of 1 million billion Nagasaki - sized atomic turkey on a bad Clarence Day four billion year ago .

Nature has devoted a particular issue prognosticate “ Cosmic Impacts ” concentrate on on the new findings , with a coolstoryon the 100th Anniversary of the Tunguska Event and a sweet photogalleryof the solar arrangement ’s pretty craters that are deserving a flavour .

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