Disturbing Discovery Finds That Space Does Something Bad to Astronauts' Bones

Spending months in space can cause the equivalent of two decades of bone loss for astronauts, according to a new study.

An issue that could become much more widespread as more and more civilians travel to space is explained in the study.

17 mostly-male astronauts with an average age of 47 who traveled to space for anywhere between four and seven months were tracked by a team of calgary exercise scientist.

It was found that astronauts who spent more than six months in space lost more bone density than those who spent less time in space.

The study quantifies how much bone loss astronauts experience in terms of lifespan, and also looks at how their bones rebound after they return to Earth.

Good old weightlifting is a key way to strengthen bones while astronauts are in space.

According to Gabel, bones are active and constantly remodeling.

A decade's worth of bone loss is caused by six months in space.

Scientists say your bones are made out of exploded stars.