Watch the Earth’s orbit flash by in seconds: a never-setting sun from on board the ISS

FirstSpaceVine

 

Reid Wiseman, a 38-year-old Nasa astronaut from Baltimore, has condensed a 92-minute orbit of Earth into the span of around six seconds. During the timelapse, the sun never sets at all. This is because the ISS’ orbit is alignment with the ‘terminator’ line which marks the barrier between light and dark on Earth’s surface. This happens 2-4 times a year but is most extreme near summer solstice.

 

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