The largest earthquake ever detected on Mars has revealed layers in its crust that could indicate past collision with a massive object, such as a meteoroid. Previous data have suggested the past occurrence of a large impact, and the findings offer evidence that might support this hypothesis. Marsquake: Largest Quake of 4.7 Magnitude Detected in Mars, Reveals Possible Past Meteoroid Impact.
Ancient alien life 'living underneath the surface of Mars', claims bombshell research dailystar.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from dailystar.co.uk Daily Mail and Mail on Sunday newspapers.