The conversation between human and AI assistant.
[|Human|] Given this paragraph on Mercury-Redstone 1, how many people were on the MR-1 when the launched failed, and when was the launch?
[|AI|] MR-1 was launched on November 21, 1960, and MR-1 was an uncrewed flight, so there were no people on the spacecraft.
[|Human|] 
Given this paragraph on Mercury-Redstone 1, how many people were on the MR-1 when the launched failed, and when was the launch?