It's not easy to measure the weather. Pupils learn about what all weather has in common—the atmosphere. Scholars discover how a meteorologists must be able to measure aspects of the atmosphere and decipher the data. They then create a...

Take a look at climate change from another angle. Readers learn about the MISR instrument on the Terra satellite and how it studies Earth. Pupils experience how the multiple cameras give scientists multiple views so they can better study...

Keep within a water budget. Learners find out that less than 2.5% of Earth's water is available to drink—and that there is a fixed amount of water. Scholars read an interesting article comparing the available water to a game of Monopoly...

Imagine riding a balloon to the top of Earth's atmosphere to catch a piece of Comet Halley. During the Eta Aquarids meteor shower, Earth passes through a dust trail left by the most famous comet. This article details how a group of...

The buildup of carbon dioxide in the atmosphere is rising faster than at any time since dinosaurs roamed the Earth. The burning of fossil fuels is largely to blame.

Scientists have learned that when gusts of high-speed solar particles enter our atmosphere, the number of lightning bolts increases. Learn more about how this phenonemon works.

This site from the Univ. Corp. for Atmospheric Research provides detailed information on El Nino and its effects on the trade winds is offered at this site, with satellite photos.

The aim of this article is to relate the history of oxygen in the atmosphere to the evolution of photosynthesis, aerobic respiration, mitochondria, and life on earth.