CAPE CANAVERAL, Fla. -

The next supply run to the International Space Station has been delayed.

SpaceX was scheduled to launch a cargo ship from Cape Canaveral, Fla., before dawn on Sunday. But on Thursday, the private company said it needed more time and postponed the launch for two weeks, until March 30.

The unmanned capsule named Dragon holds about 2 tons of supplies and experiments. It will also take up a pair of legs for the humanoid robot at the space station. Until now, Robonaut has been stuck on a pedestal.

The delivery will be the fourth for the California-based company. It is one of two companies hired by NASA to take goods to the space station.