NASA lift vehicle. The Space Launch System is intended to launch the Orion Multi-Purpose Crew Vehicle and other elements towards the Moon, near-Earth asteroids, and one day Mars. The Orion MPCV conducted an unmanned test launch on a Delta IV Heavy rocket in December 2014. The James Webb Space Telescope (JWST) is currently scheduled to launch in May 2020. On August 6, 2012, NASA landed the rover "Curiosity" on Mars. On August 27, 2012, "Curiosity" transmitted the first pre-recorded message from the surface of Mars back to Earth, made by Administrator Charlie Bolden: NASA's ongoing investigations include in-depth surveys of Mars
When We Left Earth: The NASA Missions When We Left Earth: The NASA Missions When We Left Earth: The NASA Missions (or NASA's Greatest Missions: When We Left Earth in the UK) is a Discovery Channel HD documentary miniseries consisting of six episodes documenting American human spaceflight, spanning from the first Mercury flights through the Gemini program to the Apollo moon landings, the Space Shuttle, and the construction of the International Space Station. It was created in association with NASA to commemorate the agency's fiftieth anniversary in 2008. It first aired on June 8, 2008, and concluded on June 22. Each airing consisted of two hour-long episodes.