Why SpaceX delivered living bits of human organs to the ISS for NASA
While in orbit on the ISS, microgravity can suppress astronauts' immune systems and can even cause their muscles and bones to atrophy.
While in orbit on the ISS, microgravity can suppress astronauts' immune systems and can even cause their muscles and bones to atrophy.
A 1,000-year-old bag that is believed to have once belonged to a shaman was discovered in the Cueva del Chileno rock shelter in southwestern Bolivia.