The holes, aka pits, are located on the flanks of ancient volcanoes in Mars's Tharsis region, the largest volcanic region on ...

Interesting Engineering (IE) walks you through ten spectacular geological features on Mars so you can decide which one ...

Take a tour of the space volcanoes on other planets and moons across the Solar System, and find out how they differ from ...

With a diameter of 375 miles, Olympus Mons is part of the largest volcanic region on Mars called the Tharsis Montes. The region spans 2,500 miles across the surface of Mars and contains 12 large ...