can you name some missions undertaken by them?
The Asteroid Redirect Mission
NASA
NASA undertook a feasibility study in 2012 and developed the Asteroid Redirect Mission as an uncrewed mission to move a boulder-sized near-Earth asteroid (or boulder-sized chunk of a larger asteroid) into lunar orbit. 
who is christopher c. kraft jr. ? American aerospace engineer and NASA engineer what is the full form of the abbreviation? The National Aeronautics and Space Administration when was he hired there? 1944 can you tell me more about his role in the mission planning? He was one of the first NASA managers involved in the decision to send Apollo 8 on a circumlunar flight. what accolades did he receive? NASA Outstanding Leadership Medal; four NASA Distinguished Service Medals; the Distinguished Citizen Award; and many more. when was this agency established? 1958
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NASA [SEP] Journey to Mars (2010–2017)
The initial capability of SLS is required to be able to lift (later ) into LEO. It is then planned to be upgraded to and then eventually to . The Orion capsule first flew on Exploration Flight Test 1 (EFT-1), an uncrewed test flight that was launched on December 5, 2014, atop a Delta IV Heavy rocket. NASA undertook a feasibility study in 2012 and developed the Asteroid Redirect Mission as an uncrewed mission to move a boulder-sized near-Earth asteroid (or boulder-sized chunk of a larger asteroid) into lunar orbit. The mission would demonstrate ion thruster technology, and develop techniques that could be used for planetary defense against an asteroid collision, as well as a cargo transport to Mars in support of a future human mission.