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The Winter 2010 issue of The Earth Scientist includes a variety of educational resources, ranging from astronomy to glaciers. Check out the other publications and classroom materials in our online store.
Portrait of Nicholas Copernicus
SPL/Photo Researchers

Nicholas Copernicus

Nicholas Copernicus was a Polish asrtonomer who lived between 1473-1543. A long time ago, people believed that the Earth was the center of the universe.

Copernicus changed this belief when he introduced a model of the solar system that was centered around the sun. He claimed that all the planets, including Earth, moved in orbits around the sun.


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Science, Evolution, and Creationism

How did life evolve on Earth? The answer to this question can help us understand our past and prepare for our future. Although evolution provides credible and reliable answers, polls show that many people turn away from science, seeking other explanations with which they are more comfortable....more

Ptolemy

Ptolemy was a Greek astronomer who lived between 85-165 A.D. He put together his own ideas with those of Aristotle and Hipparchus and formed a unified model of the universe. Ptolemy believed that the...more

Johan Kepler

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For many years, people believed that the Earth was the center of the universe, that the Earth didn't move and that the planets, Sun, moon, and the stars moved on spheres around the Earth. Astronomers such...more

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Tycho Brahe was a Danish astronomer who lived between 1546-1601. For over twenty years he made observations of stars, comets, and planets in the night sky. Tycho also built the first observatory but did...more

Nicholas Copernicus

Nicholas Copernicus was a Polish asrtonomer who lived between 1473-1543. A long time ago, people believed that the Earth was the center of the universe. Copernicus changed this belief when he introduced...more

Leonardo da Vinci

Leonardo da Vinci was an Italian artist and scientist who lived between 1452-1519. While he is best known as a painter, Leonardo mostly worked for the military. He made sketches of tanks, airplanes, and...more

Galileo Galilei

Galileo Galilei was an Italian astronomer and physicist who lived between 1564-1642. He was the first person to use a telescope to look at the heavens, and discovered craters in the moon. Galileo found...more

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