Billionaire Elon Musk-led SpaceX's Dragon spacecraft successfully docked with the International Space Station (ISS) on Monday, a day after its launch. The spacecraft is carrying more than 2,170-kg of supplies and experiments, including ants, brine shrimp, plants and a human-sized robotic arm. The shipment includes fresh food like avocados, lemons and ice cream for the seven astronauts at the ISS.