The Falcon 9 launch from Cape Canaveral Space Force Station was supposed to happen on Sunday, but SpaceX changed the date.
The possibility of a night launch from the Space Coast for the second time in as many days was dashed as a result of this.
The launch would have been about 24 hours after Saturday night's launch, when Starlink internet satellites were sent into space. The next launch date for SpaceX is now set for September 13.
Falcon 9 is a two-stage rocket that can be used more than once. It was designed and built by SpaceX to carry people and cargo safely into Earth orbit and beyond.
SpaceX can reuse the most expensive parts of the rocket, which brings down the cost of getting to space.
There are two parts to the rocket. The first (booster) stage gets the second (upper) stage and payload to a certain height. Then, the second (upper) stage takes the payload to its final destination.
The booster can land vertically so that it can be used again. This feat was first achieved on flight 20 in December 2015.
Falcon 9 is designed to carry people, so it can take NASA astronauts to the ISS. The National Security Space Launch Program has approved Falcon 9.
On October 8, 2012, the first mission took off. It is the only commercial rocket that has ever sent a person into space.