This project shows you how to use images from an orbiting observatory to measure how fast the Sun rotates.

Online resource for students and teachers to see information on icebergs, fisheries, coral reefs, waves, currents and more. Provides teachers with learning activities. Has its own ask-an-expert site (Ask Dr. Bob), and provides real-time...

Teachers and students discover linkages among marine ecology, phytoplankton, the behavior of light at the ocean surface, and satellite-derived ocean color data. Explore the topics of phytoplankton, food webs, and algal blooms using...

Using interfaces for reanalysis and historical station data, the Climate Reanalyzer provides an intuitive platform for visualizing a variety of weather and climate data sets and models.

Learn how Oprah became successful by reading her biography. Organized into several sections: "Television Pioneer," "Magazine Founder & Editorial Director," "Producer/Actress," "Philanthropist," "Television Programming Creator,"...

This site gives current weather information by state.

Statistics and general information about the thirteenth moon of Jupiter. One statement sums it up: "Very little is known about Elara."

Learn how Oprah became successful by reading her biography. Organized into several sections: "Television Pioneer," "Magazine Founder & Editorial Director," "Producer/Actress," "Philanthropist," "Television Programming Creator,"...

This photo shows a satellite image of the destructive Hurricane Katrina as it makes its way over both the ocean and the coast of the USA.

Spanning seven different countries in South America, the Amazon River is one of the longest rivers in the world. It reaches around 6400 kilometres (4000 miles) in length. This is a satellite image showing the mouths of the Amazon River...