It was scrubbed yesterday for weather, but it’s set to launch in a few minutes. It’s an unflown booster, but the cargo Dragon has flown before.
[Update a few minutes later]
Everything looking good through Max Q.
[Update a couple minutes later]
Clean MECO and stage separation. About to do boostback of the booster. Grid fins are deployed.
[Update a few more minutes later]
Another successful landing. I don’t think they’ve had a failure for Falcon 9 since the first success, though they have lost them on Falcon Heavy.
[Update a few more minutes later]
Solar arrays deployed, and Dragon on its way to ISS.
[Late-morning update]
With this launch, SpaceX has hit another milestone.
There have been a few “rapid unscheduled disassemblies” since their first land and sea successes, but they have quickly become the exceptions. Now if a booster doesn’t land successfully it’s big news.