To fix that, NASA is redefining the Artemis campaign as a step‑by‑step test program. The agency now aims to launch roughly once every 10 months, standardize its rocket configuration, and rebuild in‑house expertise that has withered over time.
Now scientists are directly linking the uncontrolled rocket re-entry to a plume of lithium measured less than 100km above Earth.
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Sync/async separation
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Today's actuators, even the state-of-the-art ones, are still largely made from metals, hard plastics and electronics. But there are other ideas around. Tolley and his colleagues have been working on a very different approach.