Lead
About 300 miles above the planet, three washing machine-sized capsules are circling the Earth. In one of those vehicles, researchers are growing tiny crystals of a potential cancer drug in the weightlessness of space; the other two are conducting tests on heat-protection materials and navigation equipment intended for hypersonic re‑entry.
Varda launches
The spacecraft belong to Varda Space Industries, a California-based company pursuing in-orbit production. Two of the capsules were launched on 1 October and a third followed on 20 October. With all three now simultaneously in orbit for the first time, the company says it is moving closer to its stated ambition of running a fleet of orbital pharmaceutical factories.
On-orbit experiments
Inside one capsule, researchers are using microgravity to grow the minute crystals that could form the basis of a future cancer therapy. The two companion spacecraft are focused on systems and materials that would need to survive return to Earth, including heat protection and navigation capability for the high-speed atmospheric plunge.
Industry aim and implications
Taken together, the missions represent an incremental advance toward what some backers hope will become a new commercial sector: manufacturing drugs and other high-value materials in space. The flights are being framed as technical demonstrations that, if successful, could underpin broader efforts to exploit unique orbital conditions for production.
Significance
While the capsules are small and the experiments limited in scope, the simultaneous presence of three Varda spacecraft in low Earth orbit marks a milestone for the company and underscores growing interest from parts of the pharmaceutical and space industries in in-orbit manufacturing.