Astronauts: Time Travelers of the Cosmos

The International Space Station moves so fast it experiences sixteen sunrises and sunsets every

single day. That's right, astronauts up there are basically living in a cosmic time

lapse video. They orbit Earth at seventeen thousand five hundred miles per hour,

which means every ninety minutes they complete a full lap around our planet. Imagine trying to

plan your sleep schedule when the sun keeps popping up like an overeager neighbor every forty

five minutes. NASA actually has to black out the windows and stick to artificial day

night cycles, otherwise astronauts would lose their minds faster than you can say jet

lag. But here's where it gets weird. Because of this insane speed,