Virgin Orbit launched seven satellites aboard a rocket from California's Mojave Air and Space Port on Saturday at 1:49 AM ET (11:49 PM local). 

This was the launcher's first successful night flight. A Boeing 747 carrier plane named Cosmic Girl helped the company lift the satellites into low Earth orbit. 

The LauncherOne rocket was attached underneath one of its wings. Straight Up, named after a 1988 Paula Abdul song, was a NASA Space Test Program mission that involved seven research satellites. 

Virgin Orbit launched the satellites into space using Cosmic Girl to carry the LauncherOne rocket at 35,000 feet above the ground. 

This gave Cosmic Girl a head start before the rocket detached and launched its payload into orbit. 

However, Virgin Orbit delayed the mission initially on Thursday after discovering that the rocket propellant temperature was slightly out of range.

Virgin Orbit has successfully launched five times, with only one failure during its mai 2020 test flight.

 Since January 2021, when it reached orbit, Virgin Orbit has been on a roll. It deployed several satellites into orbit in June 2021 and completed another mission earlier in the year. 

Virgin Orbit's Straight Up mission marks the fourth successful flight of the company.

Richard Branson, a British billionaire, owns Virgin Orbit. This is not to be confused with Virgin Galactic. 

Virgin Galactic is the company's separate branch for commercial orbit flights. Last year, the company was made public through a merger with a SPAC (special-purpose acquisition company). 

Virgin Orbit has successfully launched all of its launches from Southern California but plans to launch from Cornwall, England, later in the year.