But it will also, and always, represent something else for the human imagination, Urquieta said - its endless sweep of sequined darkness sparking our ambitions, dreams and stories. Antioxidants, such as vitamins C and E, could sop up a portion of the damaging molecules released after radiation exposure, while other protective drugs and nutrients are under investigation, he said.ĭespite every available precaution and protection, deep space will remain a harsh, unwelcoming place for the human body. The moon and Mars journeys will demand advanced shielding, Urquieta said, together with drugs and supplements that might lessen some of the internal effects of the remaining - and inevitable - radiation. The Earth’s magnetic field shields the relatively close-in space station as well from some of the worst deep-space radiation, but the lunar and Mars missions - higher and farther from Earth - will not enjoy that protection. But on lunar and Mars missions, which will involve smaller ships and possibly years-long durations, exercise equipment will need to be shrunk and astronauts’ willingness to keep up with the workouts enlarged.
On the space station, astronauts routinely work out for about an hour most days, she said, using specialized devices to run, cycle and lift weights, despite being weightless.
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