Massive underground explosions, perhaps involving ice, have created the pits inside two large impact craters in the Thaumasia Planum region on Mars, say researchers from the European Space Agency. Arima twin craters in the Thaumasia Planum region on Mars (ESA / DLR / FU Berlin / G. Neukum) Thaumasia Planum is a large plateau that lies immediately to the south of Valles Marineris, the largest canyon in the Solar System. The twin craters, imaged by...
