Arsia Mons, the southernmost of the Tharsis Montes trio, stands at an awe-inspiring 20 kilometers high, dwarfing Earth's ...

An updating map created by CBS News' data team charts the expanse of the wildfires across Southern California. The Hughes Fire, which erupted in northwest L.A. County on Wednesday, Jan. 22 ...

Sims, 34, summited Mount Everest around 11 a.m. on May 23 as part of a five-person expedition guided by Seattle-based Alpine Ascents International. And she didn’t stop there. After returning to camp ...