Making medicine in space sounds like something from a science-fiction movie. But scientists are already testing whether it could become a practical way to produce certain drugs.
California-based company Varda Space Industries is conducting experiments in orbit to investigate how the absence of normal gravity affects pharmaceutical manufacturing.
One of its current missions involves studying how crystals form in a potential cancer treatment.
Why crystals?
Many medicines depend on how their active ingredients dissolve and are absorbed by the body. The structure of a drug’s crystals can influence how consistently and effectively it works.
On Earth, gravity affects how particles move and settle during production. In space, microgravity creates a different environment that could allow some pharmaceutical materials to form more uniform crystals.
Varda’s W-7 mission, launched on October 20, is studying a class of experimental medicines called PROTACs. These molecules are designed to help the body break down specific proteins associated with diseases, including certain cancers.
Some PROTAC compounds are difficult to formulate into medicines because of their physical properties. Researchers hope that experiments in orbit could help address those challenges.
Varda operates compact manufacturing laboratories inside spacecraft, which are designed to return their experimental materials to Earth for analysis.
Other companies, including Britain’s BioOrbit, are also exploring whether space manufacturing could improve pharmaceutical production.
But there is an important reality check.
Scientists have not established that cancer medicines manufactured in space are better treatments, and these experiments are not evidence of a new cancer cure.
Sending equipment into orbit is expensive, and companies must still demonstrate that the results are reliable, commercially viable and medically useful.
For now, the research represents an unusual new direction for pharmaceutical development.
And it raises a fascinating possibility: in the future, some medicines used by patients on Earth might begin their manufacturing journey hundreds of kilometres above it.
