SpaceAgeChronice.com welcomes Jeff Carr writing about his father, Jerry Carr, a U.S. Marine Corps aviator, NASA astronaut and commander of the record-shattering Skylab 4 mission in 1973 and 1974. On Christmas 1973, “Dad would have an experience that day that only a very small number of humans have ever had . . . the Earth, to himself, in a moment of reckoning, wonder and profound realization,” Jeff Carr said.