Bacteria living aboard the International Space Station (ISS) have evolved to better withstand the extreme conditions of space, according to a new study.
Nasa researchers investigating a strain of bacteria that had travelled to the space station via either human hosts or supply deliveries found that it had developed new traits in order to survive low-Earth orbit.
When compared to similar strains on Earth, the scientists noted that the bacteria was able to better endure space radiation and low-gravity.
