Alright, #crew1 return: a primer.

First off - it may just not happen tonight. We only undock if the weather at the splashdown site is good. If it's not? No big deal. This capsule can stay on orbit for much longer if needed. We wait until weather/sea state is good. https://twitter.com/KathyLueders/status/1388220693511380995

This afternoon we will have the "undock minus six hours" weather briefing. This is an important one, as a "go" report means that when the crew wakes from their sleep shift they should start final cabin/suit preps. If "no-go" they'll put Dragon back into normal docked config.

A few hours later is a final weather briefing before hatch closure. We want to make sure we're really coming home before we depressurize the docking port - air isn't cheap!

We'll do final undock systems checks, and a go/no-go poll of the flight control teams, before @SpaceX presses the button to start the undock sequence and the hooks holding Resilience to @Space_Station start opening.

When released, Resilience fires its jets, and off it goes to hang out 10km below @Space_Station for a bit. This is the perfect orbit to line it up a few hours later for the deorbit burn to a spot in the Gulf of Mexico.

In the meantime the crew is running system checks and grabbing a bite to eat. Later, at burn time, the crew will be suited for the deorbit burn, which will happen just after Dragon releases its "trunk" of solar panels and radiators. Only the capsule comes home.

After the burn it's all physics. Slow down by a few miles per hour, and your orbit dips. The dip puts you into the tippy top of the atmosphere, which slows you down more, which means more dip... and so on. Resilience now resembles a shooting star.

Eventually Dragon gets low enough that we can deploy the drogue parachutes, then the four beautiful main parachutes. I don't think @SpaceX embedded any coded messages in theirs like @NASAJPL, but we dare mighty things nonetheless.

Resilience lands in hopefully calm waters, and the @SpaceX recovery boat picks it out of the water. The hatch is opened and about an hour after splashdown the crew is out for medical checks. Then it's a helo ride to shore and a Gulfstream ride to Houston.

The great thing about tonight's landing opportunity is the quick duration - about six hours from @Space_Station to water (just luck based on our point in the orbit at undock). The crew wakes up on #ISS and goes to bed in Houston.

I will run the console team at @NASA_Johnson for undock. @Explorer_Flight takes the helm for the next shift which is deorbit. I think I'll stick around to watch the action, grab a few hours of sleep, and maybe get to see my crew in person tomorrow morning.

This might be the quickest "ISS-to-Houston" journey of any astronauts ever, come to think of it. I know someone will tell me if I'm wrong because this is Twitter.

Go Resilience!