Edgar Mitchell, 1930 - 2016

I'm very saddened to write that we've lost another Moon walker: His family just announced that Edgar Mitchell, Apollo 14 astronaut, died on Thursday (Feb. 4, 2016). By coincidence, he died on the 45th anniversary of his mission, just one day short of the anniversary of the date he landed on the Moon. All twelve men who walked on the Moon are heroes. They risked their lives to go where no human had gone before, and our planet -- our species -- is the better for it. What Mitchell and his fellow as...