SpaceX successfully launched the Dragon cargo ship at the Cape Canaveral Air Force Station in Cape Canaveral, Fla., on Friday.
The Dragon will spend nearly three weeks connected to the ISS before separating and returning back to Earth with nearly 3,500 pounds of science equipment and supplies.
Today's launch was the third of 12 resupply missions that SpaceX, a private company owned by Elon Musk, plans to complete through their $1.6 billion contract with NASA.
The launch was also the first attempt to use a reusable rocket, which, if successful, could completely change the economics of space exploration.
This is 1st ever orbital rocket launch w landing legs. Will attempt leg deploy & soft landing out to sea.