Video: Falcon 9 rocket fires engines in pre-launch test (members only)

Despite a growing number of rocket options, the availability of on-time launch services remains a key factor in getting BlackSky’s constellation of Earth-imaging smallsats into orbit. SpaceX’s rideshare launch service will give BlackSky a chance to add two more spacecraft to its fleet on a Falcon 9 rocket with the next batch of Starlink Internet payloads.

The mission, dubbed NG-20, marks the first of three planned flights of Cygnus aboard a Falcon 9 rocket. Liftoff occurred at 12:07 p.m. EST (1707 UTC).

An Ariane 5 rocket will fire into the sky from French Guiana Thursday evening and deliver a record heavyweight payload to orbit less than an hour later.