NASA astronaut Scott Kelly begins his first-ever spacewalk outside the International Space Station on Oct. 28, 2015. Credit: Kjell Lindgren / NASA Before NASA shot astronaut Scott Kelly into orbit for ...

The International Space Station (ISS), orbiting about 400 kilometres above Earth, is one of humanity's most extraordinary scientific achievements. It functions as both a home and a research laboratory ...

The microgravity conditions of the International Space Station (ISS) mean that its human inhabitants are barred from eating crumbly foods as the particles could float away and clog up air vents and ...