So, to clarify tonights launch. This will be the first in history where NASA has worked with SpaceX to put two astronauts on ISS.

The Space Station will pass over head at about 21:20.

The SpaceX will launch 21:33

We can expect it to be visible over our shores at 21:50, following the same path West to East, looking right of the Moon. You can view the launch live here:

https://www.nasa.gov/multimedia/nasatv/#public

(Reference: Tim Peakes Tweet).