A billionaire spacewalker is back on Earth. SpaceX's capsule carrying tech entrepreneur Jared Isaacman and his crew splashed down in the Gulf of Mexico near Florida's Dry Tortugas early Sunday.
After blasting off from Florida’s Space Coast five days ago, the Polaris Dawn mission is back on Earth. RELATED: 4 private citizens on their way to record-breaking altitudes after SpaceX's Polaris ...