This is the ingot’s moment of sacrifice. The upper stage performs a “ballast jettison” burn. Explosive bolts fire. Pneumatic pushers shove the ingot away from the stack at 1.5 meters per second.
He taps the metal. “This thing will outlast every satellite on this manifest. Long after the last telemetry packet dies, the ingot will still be up there. Circling. Waiting.” Is the launch ingot a necessary evil or a reckless source of debris? launch ingot
The fairing jettisons. The ingot, still bolted in place, is now exposed to the vacuum of space. It heats up to 120°C on the sun-facing side and drops to -100°C on the dark side. It doesn’t care. This is the ingot’s moment of sacrifice
In response, several startups are now developing —magnesium-aluminum alloys designed to re-enter and fully ablate within 90 days. Others are experimenting with hollow water ingots (frozen, then sublimated in space), though the risk of ice shards damaging the fairing remains high. The Technician’s Curse Back on the ground, the ingot enjoys a strange kind of reverence. Pneumatic pushers shove the ingot away from the stack at 1
A single Falcon 9 rideshare mission might drop 10 to 15 launch ingots into Low Earth Orbit (LEO). While they are tracked by the 18th Space Defense Squadron, they are considered “passive disposable objects.”
