That includes 20 mice that will return alive inside the SpaceX Dragon capsule in about a month. There was extra freezer space, so NASA packed little cups of vanilla, chocolate and birthday cake ice cream, as well as ice cream candy bars. The space station was zooming 400 kilometres above the Atlantic, just off Nova Scotia, when the Falcon took flight. The SpaceX Dragon is the only supply ship capable of returning items to Earth. Boeing is working on its own capsule to ferry space station astronauts.

Source: thestar August 15, 2017 13:52 UTC