51 years ago today, on May 5, 1961, NASA launched the Mercury-Redstone 3 rocket carrying Alan B. Shepard, Jr. aboard…
[/caption] If you follow me on Twitter, you may have seen how I was oohing and aahing about a wonderful…
Postage stamps honoring Mercury astronaut Alan Shepard, America's first man in space, and NASA's MESSENGER probe, the first spacecraft to…