SpaceX's CRS-34 cargo mission to the ISS slips 24 hours, but what's aboard Dragon C-209 matters far more than the delay — bone loss research, anemia studies, and a critical test of whether Earth-based microgravity simulators can be trusted. Six experiments that are directly upstream of the medical protocols needed for a crewed Mars mission.
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A SpaceX cargo run to the International Space Station has been pushed back twenty-four hours after weather scrubbed the May twelfth launch attempt. The new target is May thirteenth, six-fifty PM Eastern time, with docking expected at the Harmony module the following day.
Cargo Dragon C-two-zero-nine is carrying two thousand nine hundred forty-eight kilograms of supplies to the Station. Eight hundred thirty-one kilograms of that is dedicated science.
Two of the experiments address the same underlying problem: human bodies deteriorating in microgravity. That's the core medical challenge for any Mars mission, and it's still not solved.
The experiment that carries the most methodological weight is called ODYSSEY. It's asking a deceptively pointed question: are the ground-based microgravity simulators we use to run biological research actually accurate?
Two investigations are pointed outward rather than inward. CLARREO Pathfinder will measure sunlight reflected off Earth with high precision, helping calibrate the climate sensors used to track greenhouse gas sensitivity.
On the vehicle side, Falcon nine booster B-one-zero-nine-six is making its sixth flight, returning to Landing Zone forty after deployment. It's previously supported Amazon's Kuiper constellation, the IMAP solar wind mission, and a GPS III satellite.
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