Asteroids
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Last modified November 28, 2007 by Randy Russell.
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The Earth Scientist, Volume XXVI, Issue 3, Fall 2010
This very special issue of The Earth Scientist is sponsored by the Mineral Information Institute (MII) and the Society for Mining, Metallurgy and Exploration (SME) Foundation and is designed to provide a variety of resources to teachers and students to learn more about minerals and mining....more
Asteroid Toutatis Passes Near Earth
A large asteroid passed near Earth on September 29, 2004. How close was it? Not close enough to worry about! Asteroid Toutatis passed within about 1.5 million kilometers (961 thousand miles) of Earth,...more
What is a planet?
Do you know what a planet is? If so, you are doing better than professional astronomers! Right now astronomers aren't quite sure how to define a planet. Maybe you've heard that some astronomers think Pluto...more
Pluto demoted - no longer a Planet!
Pluto has been officially demoted from its status as a planet. The International Astronomical Union (IAU), at a meeting in August 2006, voted on their first "official" definition of a planet....more
Meteors
Meteors are streaks of light, usually lasting just a few seconds, which people occasionally see in the night sky. They are sometimes called "shooting stars" or "falling stars", though they are not stars...more
Geminid Meteor Shower
The Geminid meteor shower happens every year in December. Meteor showers are times when you can see many meteors or "shooting stars" in one night. There are several meteor showers each year. Most meteor...more
Asteroid Toutatis
Toutatis is a very strange asteroid. It has a strange shape, and it spins in a very unusual way. Sometimes Toutatis comes close to Earth. This asteroid is shaped sort of like a potato. Its size is 1.92...more
Asteroid Lutetia
Lutetia is a medium-sized asteroid. It orbits the Sun in the main asteroid belt between the planets Mars and Jupiter. Its official name is "21 Lutetia" because it was the 21st asteroid discovered. Lutetia...moreShop Windows to the Universe
The Winter 2010 issue of The Earth Scientist includes a variety of educational resources, ranging from astronomy to glaciers. Check out the other
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