Today is the day!  Launch is scheduled for 16:33 Eastern Time (21:33 for those of you in England).

This is the first time American astronauts are being launched on American rockets from American soil since 8 July, 2011.  The entire world has relied on Russia's Soyuz since that day.

It will be streaming LIVE!  You can watch it here:

Launch called off due to poor weather conditions.

Next attempt will be Saturday, 30th of May @ 15:22 Eastern (19:22 UTC).