SpaceX’s third flight-proven Cargo Dragon spacecraft has arrived in orbit and is currently making its way uphill to the International Space Station for the 15th SpaceX resupply, scheduled for arrival around 7 am EDT July 2nd. Meanwhile, the company’s new Crew Dragon is undergoing its own earthbound trials, split between an artificial vacuum chamber and parachute drop tests over the California desert.
Following a twilight launch that brought to a spectacular close an era of older, less-reusable Falcon 9 rockets, the Cargo Dragon capsule trunk full of several tons of supplies and scientific instruments were placed into a parking orbit roughly 200 miles above Earth’s surface, trailed by a mesmerizing rainbow plume created by Falcon 9’s first and second stage over their nine-minute journey.
After arriving in orbit, Crew Dragon separated from Falcon 9’s second stage and officially commenced its second orbital mission roughly 25 months after its first, CRS-9 in July 2016. Alongside the three that have now flown successfully, all five of SpaceX’s remaining Commercial Resupply Services-1 (CRS-1) missions will be conducted with flight-proven Dragon spacecraft, two or three of which will see the already-reused capsules fly a third time before being officially retired.
After SpaceX’s first CRS contract comes to an end, currently scheduled for early 2020 with the CRS-20 mission, the upgraded Dragon 2 will take over all future cargo launches. Dragon 2’s cargo configuration is expected to be a slightly different version of the Crew Dragon capsule and trunk, scheduled to debut as early as late 2018, but the specifics are still somewhat hazy. Most probably, recovered Crew Dragon capsules – unlikely to ever been certified to fly NASA astronauts – will instead be refurbished after their first orbital missions, modified slightly to meet the cargo requirements, and then used to complete SpaceX’s CRS-2 contract alongside their crew transport missions.
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