视频简介
An epic journey revealing the real Mars, as you've never seen it before. Using data from orbiters and rovers to build accurate views of the red planet and uncover its secrets. On a single circuit of Mars from dawn to dusk, encounter monster volcanos, ancient lakes, alien ice-worlds and spacecraft crash sites. Explore humanity's Martian obsession, join the relentless search for ...。As "Alone" enters its fourth season, the competition series shakes things up with a new twist: the contestants are dropped off in a remote location as pairs. Seven pairs of family members travel to a rugged region of British Columbia, where they are separated and dropped off miles apart from each other. Each player must navigate the wilderness to locate his or her partner. Once...。