Two Nasa spacecraft at Mars one on the surface and the other in orbit have recorded the biggest meteor strikes and impact craters yet.
The high-speed barrages last year sent seismic waves rippling t… [read more]
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Two Nasa spacecraft at Mars one on the surface and the other in orbit have recorded the biggest meteor strikes and impact craters yet.
The high-speed barrages last year sent seismic waves rippling t… [read more]