Climate history on Mars
Clip | 6m 32s
Is there life on Mars? To find the answer, scientists are studying the planet’s climate history. According to new findings using data from NASA's Mars reconnaissance orbiter, lakes and snowmelt- fed streams on Mars formed much later than previously thought possible. Sharon Wilson Purdy, geologist at the Smithsonian National Air and Space Museum tells us about these findings.
Aired: 01/30/17Video has closed captioning.