An curved arrow pointing right. Following is the transcript of the video. Landing on Mars is easier said than done. Over the last 50 years, spacecraft have landed on over half a dozen worlds.

Under an exploration program begun in 1993, NASA has sent nine spacecraft to Mars, four to study the planet from orbit and five to land on its surface. Although the program has had its share of ...

As Mars discussions between the European Space Agency and NASA deepened in 2008 and 2009, the mission's launch vehicle changed to an Atlas V rocket built by US-based United Launch Alliance. Then, just ...