SpaceX wants to do it again. All of it: rocket boosters, fairings, payloads. The commercial space company has built its business model on reusability, and it has already proven its thrift with rockets: In March, Musk's moonshot marauders relaunched the first previously-used rocket … and re-landed it! Now, in a resupply launch destined for the International Space Station, it wants to send a (gently used) Dragon capsule back to space.

This capsule—originally launched in 2014—will carry about two and a half tons of gear, science, and personal effects to the astronauts and cosmonauts on the ISS. The mission's liftoff window opens at 5:55pm ET, and you can watch the livestream around 4:30pm ET. If SpaceX retrieves this capsule—it'll detach from the ISS in about a month, once the astronauts are done unloading it—it will do a lot to prove Musk's case that he can make a fully recyclable rocket.

Recycling is all about money. For most of us, that's money for beer at the end of the month. For Musk, it's money he saves every launch, which he uses to undersell his competitors, launch more rockets, and eke his way towards his goal of sending missions to Mars. Every Falcon 9 first stage he reuses saves him about $60 million. The Dragon capsules are probably worth less—but still, that's a lot of cases of beer.