For the first time, scientists have detected a marsquake travelling through Mars’s core – thanks to a Nasa rover that should have already been retired. The team, led by the University of Bristol, also ‘heard’ a meteorite strike on the Red Planet.
For the first time, scientists have detected a marsquake travelling through Mars’s core – thanks to a Nasa rover that should have already been retired.
‘We’ve effectively been listening for energy travelling through the heart of another planet, and now we’ve heard it,’ said lead author Dr Jessica Irving, senior lecturer in earth sciences at the University of Bristol.. Two seismic signals, one from a very distant marsquake and one from a meteorite impact on the far side of the planet, have allowed us to probe the Martian core with seismic waves.
The results also suggest the core is smaller than previously estimated, at between 3.560km and 3,620km across.
Belgique Dernières Nouvelles, Belgique Actualités
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