4K Video: Watch the Falcon 9 test fire its 1st stage engines (members only)

SpaceX launched the first in a series of small satellite rideshare missions Sunday from Cape Canaveral, providing transportation for 143 U.S. and international spacecraft to low Earth orbit, a record number of satellites on a single flight. Liftoff occurred at 10 a.m. EST (1500 GMT) Sunday after bad weather forced SpaceX to scrub a launch attempt Saturday morning.

The Starlink 10-20 mission will add another 28 broadband internet satellites to SpaceX’s megaconstellation. Liftoff from pad 40 at Cape Canaveral Space Force Station is scheduled at 8:29 a.m. EDT (1229 UTC).

Watch a time lapse replay of SpaceX’s next Falcon 9 rocket being raised vertical Thursday at launch pad 39A at NASA’s Kennedy Space Center in Florida for a mock countdown and engine test, ahead of a scheduled liftoff this weekend with an Intelsat communications satellite.