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Warnings: The True Story of How Science Tamed the Weather by Mike Smith tells the story of our storm warning system. See our online store book collection.

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The Fall 2009 issue of The Earth Scientist, which includes articles on student research into building design for earthquakes and a classroom lab on the composition of the Earth’s ancient atmosphere, is available in our online store.

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Traveling Nitrogen Classroom Activity Kit

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

Solar System Formation

Scientists believe that the solar system was for med when a cloud of gas and dust in space was disturbed, maybe by the supernova of a nearby star. Shock waves from the explosion compressed the cloud of...more

The Solar System

The solar system is made up of the Sun, // Call the planets count function defined in the document head print_planet_count('planets'); planets and // Call the planets count function defined in the document...more

Eris - a dwarf planet

Eris is a dwarf planet that was discovered in 2005. Eris is a trans-Neptunian object (TNO) that orbits the Sun on the frozen fringes of our Solar System beyond the Kuiper Belt. Eris takes 557 years to...more

What is a planet?

It may surprise you, but astronomers don't really have a good definition of a "planet". Because of this, Pluto is at the heart of a controversy about its status. Is Pluto a planet, or isn't it? Scientists...more

Orionid Meteor Shower

The Orionid meteor shower is one of several major meteor showers that occur on roughly the same date each year. The Orionids typically "peak" (are at their greatest level of activity) around October 21st....more

Leonid Meteor Shower

The Leonid meteor shower is one of several major meteor showers that occur on roughly the same date each year. The Leonids typically "peak" (are at their greatest level of activity) in mid to late November....more

Meteor Showers

A meteor shower is an astronomical event during which many meteors can be seen in a short period of time. Most meteor showers have a peak activity period that lasts between several hours and a couple of...more

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