Update April 18th, 2014 3:30pm: The Falcon 9 has successfully launched, and the capsule is headed towards the ISS for a Sunday docking.

After weeks of delays, SpaceX is preparing to launch its third supply mission to the International Space Station. The Falcon 9 rocket and accompanying Dragon capsule are expected to blast off from Cape Canaveral at 3:25 EDT, and the craft is set to rendezvous with the space station on the morning of Sunday, April 20th. A video feed of the takeoff will go live around 2:45PM. The CRS-3 mission, carried out through a partnership with NASA, comes almost two years after the Dragon capsule became the first commercial craft to ever dock with the ISS. This time, SpaceX is using the flight to test the next steps…

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