SpaceX is gearing up for the third-ever launch of its Falcon Heavy rocket: the world's most powerful operational launch system. The mission, called Space Test Program-2 (STP-2), is slated to lift off between 11:30 p.m. ET on June 24 and 2:30 a.m. ET on June 25, weather permitting.
When it does, the rocket will propel 24 satellites into orbit around Earth as well as the ashes of 152 dead people. The launch of cremated remains is facilitated by a company called Celestis Memorial Spaceflights, which purchases available room on spacecraft, installs a container, then packs it with small metal capsules filled with ashes. It refers to these as participants.
But for these ashes to enter orbit as intended, SpaceX first has to pull off what Elon Musk, the rocket company's founder, has called-2 our most difficult launch ever. The variety and complexity of the two dozen satellites and their payloads are to blame: The various spacecraft have to be deployed into several different orbits using multiple engine burns, according to SpaceX. One of the satellites being launched holds NASA's Deep Space Atomic Clock, which may change the way robots and astronauts navigate through space. Another has the Planetary Society's LightSail, an experiment that could change how vehicles propel themselves to a destination.
The ash capsules are stowed on the same spacecraft like NASA's clock.
SpaceX has launched cremains into orbit before, but the company doesn't work directly with families to memorialize loved ones by flying their ashes into space. That responsibility goes to Celestis. Since its founding in 1994, the company has flown cremains on 15 different rockets: eight up-and-down suborbital flights, six into orbit around Earth, and one that crashed into the moon.
For SpaceX's STP-2 mission, Celestis bought spare room aboard the Orbital Test Bed satellite, which is also flying NASA's experimental atomic clock (among other payloads). The Celestis payload is flat metal sleeve. Technicians glued each of the 152 capsules inside the sleeve, then bolted it to the upper deck of the satellite.
Not every capsule is the same size or weight: A family can choose to fly between 1 gram and 7 grams of ashes (between a US dollar bill and a US dollar coin's worth of mass). Many capsules have tombstone-like sayings etched into them. An inscription of one capsule flying aboard the upcoming STP-2 mission flight reads Reach for the stars! and another says Space Truckin' Forever. The capsule of a now-deceased couple says: "THEY LIFT OFF TOGETHER!
Prices to send ashes into space starts at just under $5,000 for orbital flights, according to Celestis' website, while deep-space and lunar flights begin at $12,500.
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