11:40 AM: Another try today for the historic SpaceX Crew Dragon launch – and West Seattle educator Alice Enevoldsen is webcasting again, starting shortly. Go here for the quick required registration to join via Zoom.
11:48 AM: Alice’s webcast has begun. Launch is still on for 12:22 pm.
12:23 PM: Lifted off! (See it on Twitter.) … First American astronauts to launch from the U.S. since the last shuttle mission in 2011.