KENNEDY SPACE CENTER, Fla. — Despite the setback on Saturday, SpaceX launched the Falcon 9 rocket for a cargo-supply mission to the International Space Station on Sunday morning. 

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The rocket was supposed to launch on Saturday, but SpaceX company cited poor weather in the recovery area as the reason for moving the launch.

SpaceX launched the Falcon 9 rocket from Kennedy Space Center's Launch Pad 39A at 11:17 a.m. EST.

The Falcon 9 rocket is filled with supplies and on its way to the International Space Station, which will dock with it at around 1:30 p.m., EST, Monday. The launch will be the 21st commercial resupply mission to the space station.

The rocket's Dragon cargo spacecraft is carrying supplies and science investigations. Among the studies are one on cardiovascular cells, another on the interaction between microbes and minerals, and a blood analysis tool.

This is the first mission for the upgraded cargo version of SpaceX's Dragon capsule. The new version of the capsule is able to carry about 20% more volume. It's also designed for up to five flights to and from the ISS, according to SpaceX. 

NASA tweeted out that the launch will make many firsts.

Once the rocket launches, the first stage booster of the rocket is expected to land on the "Of Course I Still Love You" droneship out into the Atlantic Ocean. SpaceX says the booster has already been used for three previous missions, including the first flight to take NASA astronauts to the ISS.

There's another rocket launch expected next week. United Launch Alliance is attempting to launch a Delta IV Heavy rocket with a satellite for the National Reconnaissance Office on Thursday afternoon from Cape Canaveral Air Force Station.

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