The crew of Expedition 34 on board the International Space Station (ISS) acquired this video, which was posted to NASA’s Gateway to Astronaut Photography website on January 23, 2013. The sped-up video features the ISS completing two-and-a-half orbits around the Earth, crossing the terminator line – or line between daylight and darkness on Earth – several times. The video begins as the ISS is in darkness. Watch as the moon rises on the left side of the video, and the ISS begins to pass over into daylight.
The crew took this sequence of shots on January 3, 2013 from 11:43:46 to 15:49:31 GMT, on a pass from northwestern Australia, making two complete orbits to eastern Quebec, near the Gulf of St. Lawrence. As experienced from ISS, the day/night cycle happens 16 times in each 24-hour period.
Bottom line: International Space Station astronaut video showing day and night on Earth, as ISS passes between the two again and again.
Deborah Byrd created the EarthSky radio series in 1991 and EarthSky.org in 1994. Today, she serves as Editor-in-Chief of this website. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named 3505 Byrd in her honor. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.