Images and diagrams of the Sun, solar phenomena such as sunspots and flares, space weather, Earth's magnetosphere and upper atmosphere, the aurora, and more.

Photos, diagrams, and other images related to climate and climate change.

Help the Joules family make choices that keep their greenhouse gas emissions low.

Learners learn the difference between parallel processing and serial processing computer systems by racing to complete a task of stacking blocks.

This site contains information about Brahe's contributions to astronomy, and also discusses his planetary model.

Web weather site for kids highlights hurricanes. Discover how they are formed, the damage they can cause as well as read a weather story about surviving a hurricane.

How is air pollution affected by weather? Some types of pollution are worse in the summer heat, while others are worse in cold winter weather.

Good air quality is critical for maintaining life on Earth. But what is air quality and why does it change?

Photos, diagrams, and other images related to weather.

Photos of various types of clouds and diagrams to help you understand clouds.

Sort photos of clouds by altitude, by composition, and into groups based on whether they are smooth or turbulent.

Solar flares are huge explosions on the Sun that emit lots of electromagnetic radiation.

A brief biography and discussion of Aristarchus' theories provided here.