The outer space beyond Earth has almost no gravity, which causes the muscles and bones that support the body to weaken. The human body system, accustomed to Earth's gravity, undergoes gradual ...

Deep-space radiation might also promote cataracts and impair eyesight. Even high-flying commercial-airline workers face that risk because of the thinner atmosphere. Your bone density can change.

The group said the remains were found in space surrounded by trash and rocks about 20 meters into the cave. The bones were buried about 1.2 meters deep over an area 2 meters long and 1 meter wide.

NASA astronaut Sunita Williams, along with Barry Wilmore, remains at the International Space Station (ISS) due to ongoing issues with their spacecraft. Originally scheduled for a return on June 14 ...