The SpaceX Demonstration Mission 2 will launch American Astronauts from American soil on an American rocket to the International Space Station since the last flight of Spaceshuttle Atlantis in 2011.
The booster is a new Falcon 9 carrying a payload mass of 12 t.
The rocket will launch from Kennedy Space Center, Florida and the first stage will land on a drone ship downrange.
Travel time to ISS will be 19 hours.
Mission Timeline: Tim Dodd
How do Capsules work: Tim Dodd
On the road to launching humans on their flight proven Falcon 9, SpaceX had to complete a myriad of additional certifications. Among them the Uncrewed SpaceX Demanstration Mission 1 to the ISS.
And the spectacular SpaceX In-Flight Abort Test: Nasa Video
Check your local time of launch at: www.timeanddate.com
Where to watch:
Tim Dodd will be live streaming 60 minutes before launch:
Scott Manley might be hosting a live stream as well
Background information about previous SpaceX launches: Wikipedia
Update on LauncherOne:
the first test-flight of Virgin Orbit didn't go as expected. The rocket successfully detached from the aircraft and fired its engine as planned. Unexpected behavior of the rocket triggered an abort of the mission.
Useful links to stay up to date on launches:
Spaceflightnow.com: Launch Schedule
Everyday Astronaut: Prelaunch Previews
NASA Spaceflight nasaspacefight.com
Be aware, this is rocket surgery.
Small disturbances can lead to postponed launches. Making sure everything is just right is way cheaper than risking big fireworks.