This model reveals how vastly different the atmosphere was on ancient Earth, and how life may have first emerged. The key to unlocking the secrets of distant planets starts right here on Earth.

WASHINGTON, Feb 19 (Reuters) - Astronomers for the first time have deciphered the three-dimensional structure of the atmosphere of a planet beyond our solar system, revealing three layers like a ...

Between 30 and 60 miles above Earth’s surface lies a largely unstudied stretch of the atmosphere. It’s too high for airplanes and weather balloons, too low for satellites and nearly impossible to ...

NASA's GOLD mission found unexpected X- and C-shaped structures in the plasma of Earth's ionosphere. Researchers have likened our upper atmosphere to "alphabet soup." When you purchase through links ...