Earth Matters

Every month on Earth Matters, we offer a puzzling satellite image. The August 2017 puzzler is above. Your challenge is to use the comments section to tell us what we are looking at, when the image was acquired, and why the scene is interesting. How to answer. Your answer can be a few words or several paragraphs. (Try to […]

Just how unusual is the big fire burning in Greenland?

Seen from space by day, central Argentina looks green and unpopulated. But by night… Visit our Earth at Night page to learn more about how scientists are using images of the planet’s dark side to gain insight on human activity and on poorly understood natural events.