For most of us, pondering the logistics of death doesn’t involve zero gravity, freezing temperatures, or decomposing in a vacuum. But for NASA, where space travel transforms every “what if” into a life-or-death scenario,

So, the space agency does have a protocol for astronauts to follow in case someone does die in space. Astronaut and former commander of the International Space Station (ISS), Chris Hadfield, explained NASA even runs ‘death simulations’ with astronauts to lay out the scenarios.

Most of the Expedition 72 crew enjoyed a day off on Tuesday, while two NASA astronauts focused on cutting-edge human research and biotechnology studies. This work comes as the crew prepares for two spacewalks later this month,

The Northern Lights are one of the most mesmerizing natural phenomena on Earth, but seeing them from space offers an entirely unique perspective. NASA astronaut Don Pettit recently