"Standing down today due to excess upper-level winds. Teams are working toward tomorrow's backup launch window, which opens at 10:30 p.m. EDT [05:30 a.m. Friday GMT]", the company wrote on Twitter.
According to SpaceX CEO Elon Musk, the Starlink mission will be SpaceX's heaviest load.
"Starlink mission will be heaviest @SpaceX payload ever at 18.5 tons. If all goes well, each launch of 60 satellites will generate more power than Space Station & deliver 1 terabit of bandwidth to Earth", Musk wrote on Twitter.