NASA just set preliminary dates for its commercial crew launches, with SpaceX in the lead

There's a space race happening right now. It's not between the United States and Russia, or any nations at all, for that matter, but it's definitely happening. It's a race between SpaceX and Boeing to be the first company to deliver a crew-capable spacecraft to NASA, and it's been filled with twists, turns, and delays since the very start.Now, a new preliminary planning schedule for NASA's "Commercial Crew" program hints that SpaceX might ultimately be the victor, but it's far from a sure thing.