The satellites are created to remain in low orbit, which will help them deliver faster internet speeds than ones orbiting higher above the Earth, according to the company.
The satellites were supposed to be delivered last Wednesday, but it was canceled because of high winds at the launch site. "Successful deployment of 60 Starlink satellites confirmed!" the company said on its official Twitter account. Following Thursday's launch, SpaceX says it has six others planned for this year, while it will ramp things up and launch a total of 720 across 2020. Each satellite is 500 pounds (227 kilograms). The first stage of the Falcon 9 rocket that carried the 60 satellites to orbit had been used in two previous launches - the Telstar 18 VANTAGE mission in September 2018 and the Iridium-8 mission in January 2019.
SpaceX is one of several commercial outfits with permission to fly an internet mega-constellation.
The launch will make it an early forerunner, along with rival OneWeb, a startup, but well ahead of Amazon's Project Kuiper, the brainchild of Musk's space rival Jeff Bezos. "Standing down to update satellite software and triple-check everything again", SpaceX said in a tweet announcing the postponement.
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"We think this is a key stepping stone on the way towards establishing a self-sustaining city on Mars and a base on the moon", Musk said on Thursday.
According to the BBC, each Starlink satellite has its own electric propulsion system that expels electrically charged atoms of krypton in order to provide thrust. Now for the moment of truth: The company will try to deploy the entire batch of satellites safely into orbit.
At a press event last week, Mr Musk sounded a note of caution about the mission.
Both constellations of satellites orbit much closer to the Earth than typical communications satellites, something which reduces signal lag.