The first-stage booster on this mission was making its fifth landing — the booster is apparently the most expensive part of the rocket.
Watching these launches live on YouTube is something that’s always interesting.
The payload for this mission was a ‘Spy’ satellite of some sort — the customer (The U.S. National Reconnaissance Office) asked SpaceX not to broadcast its deployment.
Elon Musk, who founded SpaceX, has set his sights on getting to Mars. The Falcon 9 can deliver about 4,000 Kg to Mars. The far larger StarShip, which is in part designed to get humans to Mars, made a test flight last week which Musk described as a success. (It exploded on landing but they got good data.)