Video: Falcon 9 with Crew Dragon briefly ignites engines (members only)

It is a rocket like no other, a vehicle with a single solid-fuel booster mounted to its side, that will launch NASA’s OSIRIS-REx probe next month to bring back a sample of Asteroid Bennu.

The 377th Delta rocket begins its journey to space carrying a military communications satellite funded by Canada, Denmark, the Netherlands, Luxembourg and New Zealand in a deal that gives the allies access to the U.S. military’s worldwide Wideband Global SATCOM system.

Follow the key events of the Falcon 9 rocket’s ascent to orbit with the first 10 next-generation satellites for Iridium’s voice and data relay fleet.