Calm Above the Storm: Incredible Green Smoky Swirls of Plasma Seen From Space Station

Spaceflight caused DNA to leak out of astronauts' cell 'powerhouse." All 14 astronauts studied had increased levels of free-floating mitochondrial DNA in the blood on the day of landing and three days after, ranging from two to 355 times higher than pre-space travel.

Deep-space radiation could cause have big impacts on the brain, mouse experiment shows

South Korea successfully test-fires Nuri rocket as it pursues space ambitions