parker solar probe countdown to t zero in 4k flying faster hotter and closer than ever to the sun

The astronauts and cosmonauts on the International Space Station take pictures of Earth out their windows nearly every day, and over a year that adds up to thousands of photos. The people at the Earth Science and Remote Sensing Unit at NASA’s Johnson Space Center in Houston had the enviable job of going through this year’s crop to pick their top 17 photos of Earth for 2017—here’s what they chose!