Every month on Earth Matters, we offer a puzzling satellite image. The July 2025 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, ...

Every month on Earth Matters, we offer a puzzling satellite image. The July 2025 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, ...

(Repost of an article on the Exelis Vis Imagery Speaks blog.) Over shorter times scales (Suomi-NPP completes an orbit every 100 minutes or so) multiple Day Night Band scenes stitched together show a ...

Examine the set of graphs below for a given city. Read carefully the temperature and precipitation scales on the graphs. Review the biome information. Two biome choices are given for each set of ...

The concentrations of greenhouse gases in Earth’s atmosphere have risen rapidly during the past century, mainly because of fossil fuel burning. Some of the effects of this are pretty straightforward: ...

Astronaut and scientist Piers Sellers is no longer with us, but his words still resonate. A posthumous plea from Sellers arrived in July 2018 in the form of an article in PNAS. The topic was one that ...

Earlier this month, we showed a space-based view of a glory—a colorful, circular optical phenomenon caused by water droplets scattering light. The Moderate Resolution Imaging Spectroradiometer on the ...

The Earth Observatory shares images and stories about the environment, Earth systems, and climate that emerge from NASA research, satellite missions, and models.