Earth Matters

Your challenge is to use the comments section to tell us what we are looking at, where it is, and why it is interesting.

Using satellites, aircraft, and computer models, NASA can aid farmers, reservoir managers, and decision makers as they monitor water needs.

The atmosphere is changing, trapping more heat from the Sun. The ocean plays a significant role in the balance.

Your challenge is to tell us what we are looking at, where it is, and why it is interesting.

Recent research shows that changes in the onset of spring—both early and late—can lead to more severe asthma for some people.

The Harmonized Landsat Sentinel-2 dataset combines Landsat and Sentinel-2 imagery into a seamless product.

Your challenge is to use the comments section to tell us what we are looking at, where it is, and why it is interesting.

Take a tree height observation on a smartphone, write a tree poem, and share stories about trees that are special to you on social media as part of the challenge.

A photo of one of the world's largest alkaline lakes handily won the crown.