Deep space astronauts may be prone to erectile dysfunction, new study finds. Galactic cosmic rays, and to a lesser extent microgravity, can impair the function of erectile tissues, with effects lasting potentially for decades, finds a new study with rats by NASA researchers.

Deep space astronauts may be prone to erectile dysfunction, new study finds. Galactic cosmic rays, and to a lesser extent microgravity, can impair the function of erectile tissues, with effects lasting potentially for decades, finds a new study with rats by NASA researchers.