Atlas V 401 | InSight, Mars Cube One 1 & Mars Cube One 2

InSight is a robotic Mars lander designed to study the interior and subsurface of Mars, which would in turn help scientists to understand the Earth and Solar System history. Two 6U CubeSats will piggyback with the InSight mission to help relay communications during the probe's entry, descent, and landing (EDL) phase.

An Atlas V with a 4 meter diameter fairing, no boosters and a single centaur upper stage engine.

United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.

• Discovery Program

  Exploration
  The Discovery Program is a series of Solar System exploration missions funded by the U.S. National Aeronautics and Space Administration (NASA) through its Planetary Missions Program Office. The cost of each mission is capped at a lower level than missions from NASA's New Frontiers or Flagship Programs. As a result, Discovery missions tend to be more focused on a specific scientific goal rather than serving a general purpose.
  Program infoProgram wiki