1 00:00:05,030 --> 00:00:02,230 five years ago nasa's mars 2 00:00:07,349 --> 00:00:05,040 reconnaissance orbiter mro launched in 3 00:00:09,509 --> 00:00:07,359 search of evidence that water persisted 4 00:00:11,430 --> 00:00:09,519 on the surface of mars over a prolonged 5 00:00:12,390 --> 00:00:11,440 period of time three 6 00:00:14,310 --> 00:00:12,400 two 7 00:00:17,750 --> 00:00:14,320 one ignition 8 00:00:20,790 --> 00:00:17,760 and liftoff of the atlas v rocket with 9 00:00:23,429 --> 00:00:20,800 mro surveying for the deepest insights 10 00:00:25,670 --> 00:00:23,439 into the mysterious evolution of mars 11 00:00:27,910 --> 00:00:25,680 mro's science objectives make it the 12 00:00:29,990 --> 00:00:27,920 critical next step in nasa's mars 13 00:00:32,549 --> 00:00:30,000 exploration program of following the 14 00:00:35,190 --> 00:00:32,559 water as a multi-mission strategy for 15 00:00:37,590 --> 00:00:35,200 learning about mars changing climate 16 00:00:39,190 --> 00:00:37,600 geologic history and potential ability 17 00:00:41,670 --> 00:00:39,200 to sustain life 18 00:00:44,150 --> 00:00:41,680 since its launch mro has continued to 19 00:00:45,670 --> 00:00:44,160 analyze minerals look for water trace 20 00:00:47,750 --> 00:00:45,680 the distribution of dust in the 21 00:00:48,790 --> 00:00:47,760 atmosphere and monitor the martian 22 00:00:51,430 --> 00:00:48,800 weather 23 00:00:53,750 --> 00:00:51,440 in addition to its own science the mars 24 00:00:55,830 --> 00:00:53,760 reconnaissance orbiter also serves as a 25 00:00:59,029 --> 00:00:55,840 communications relay satellite for 26 00:01:01,349 --> 00:00:59,039 missions that land on mars like the 2007 27 00:01:04,229 --> 00:01:01,359 phoenix mars lander mission and the 28 00:01:06,390 --> 00:01:04,239 upcoming msl or mars science laboratory