SpaceX launches cargo capsule

SpaceX launched a shipment of groceries to the International Space Station on Tuesday, including the first espresso maker bound for orbit. But the private company's third attempt to land a leftover booster on an ocean platform failed.

SpaceX chief Elon Musk wants to reuse the rockets rather than discard them in the ocean to reduce launch costs. Tuesday's first-stage booster rocket apparently landed too hard on the barge and tipped over.

Hans Koenigsmann, a SpaceX vice president, said it's not quite clear what happened, but "certainly it needs more work in the next couple missions". The company will try again in June on the next supply run for the NASA.