This time-lapse video was taken by the Expedition 52 crew on board the International Space Station. The sequence of shots were taken on April 1, 2017 from 12:14:00 to 12:47:16 GMT, on a northeast to southwest pass across Africa. The video begins over the northern Atlantic Ocean, passes over the Strait of Gibraltar, and across the Sahara Desert. Much of central Africa is cloud covered until the ISS passes by Lake Malawi. The last land seen in this video is the southern end of the island of Madagascar. The video ends over the vast blue waters of the Indian Ocean.

Compiled from frames ISS052-E-81417 to ISS052-E-82415

Audio: Som ET - 75 - Earth

Audio recordings of NASA's Van Allen Probes/Waves plasma wave observations.

The Van Allen Probes EMFISIS Waves instruments detect electric and magnetic components of plasma waves and radio waves that range through frequencies that include those audible to humans. Although these differ from the pressure waves that we normally think of as sound, they can be used to drive speakers and produce sounds we can hear.

NASA Images: https://eol.jsc.nasa.gov/SearchPhotos/mrf.pl?MRFList=ISS052-E-81417-82415&scope=both

Credit: University of Iowa, Image courtesy of the Earth Science and Remote Sensing Unit,
NASA Johnson Space Center eol.jsc.nasa.gov