Astronauts aboard the International Space Station experience sixteen sunrises and sunsets every single day because their vehicle is traveling at a blistering seventeen thousand five hundred miles per hour.

A closer look

Astronauts aboard the International Space Station experience sixteen sunrises and sunsets every single day because their vehicle is traveling at a blistering seventeen thousand five hundred miles per hour. The station completes a full orbit around the Earth every ninety minutes, meaning the crew's circadian rhythms are completely obliterated by the constant barrage of orbital daylight. To avoid going entirely insane from the lack of a normal day-night cycle, they have to rely on strict schedules and specialized lighting systems to trick their brains into sleeping. Imagine dealing with jet lag so intensely severe that your fundamental concept of time is shattered every hour and a half. It sounds like a majestic celestial ballet, but in reality, it is just an absolute nightmare for your internal biological clock!