100:00:03,243 --> 00:00:06,143Our neighbor, Mars,fascinates us.200:00:06,209 --> 00:00:09,543It's a planetthat is similar to Earth,300:00:10,610 --> 00:00:12,910but with some big differences.400:00:13,010 --> 00:00:16,586Mars is rusty, dusty,frigid, and frozen.500:00:16,610 --> 00:00:19,043It ain't the kind of placeyou want to raise your kids.