Historian: I think it is best to include NASA's description of NASA's 14 September 2016 discussion of this mission to get all the names and titles correct.
Physicist: This is a very interesting mission with several key parts. First here is a quick NASA sketch of the mission.
NASA is developing a first-ever robotic mission to visit a large near-Earth asteroid, collect a multi-ton boulder from its surface, and use it in an enhanced gravity tractor asteroid deflection demonstration.
The spacecraft will then redirect the multi-ton boulder into a stable orbit around the moon, where astronauts will explore it and return with samples in the mid-2020s.
Historian: There is much to learn from the 14 Sept ARM discussion which well connects ARM with many of our long-term goals.
Physicist: There is also much to learn from the ARM home page which we will check often to follow ARM progress as the two concept videos turn into realities.
14 Sept ARM discussion [link]
NASA ARM home page [link]
Robotic part of ARM — concept video [link]
Crewed part of ARM — concept video [link]