The coins, which will be sold to the public beginning Jan. 24, 2019, in gold, silver and clad metal, are only the second in the Mint's history to be curved — one side is domed, the other side shaped like a bowl. "These coins are a bit unique, with a distinct curve that you will be able to see and feel," said Ryder. The coins' reverse, or tail's side, is convex, resembling the outward curve of an astronaut's helmet and feature a design based on an iconic photograph of Buzz Aldrin's visor, showing the Apollo 11 lunar module "Eagle," the...