STRIVE proposes to launch a satellite that takes a sideways view of Earth’s atmosphere, at what is sometimes called “Earth’s limb.” This photo of Earth’s limb was taken Feb. 12, 2020, from the ...

There is more to Earth than what we can see on the surface. Both the exterior and interior regions of the planet are made up of many layers with various properties. These layers are formed because of ...

Here’s what you’ll learn when you read this story: Usually, geologic layers build on one another, with younger rocks piling on top of older ones. A new study, however, shows that this process is ...