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The Universe at Your Fingertips 2.0 DVD from the Astronomical Society of the Pacific is in our online store, filled with Earth and space science resources.

Renaissance Epoch

Use these links to learn about scientists from the renaissance epoch:

Tycho Brahe
Nicolas Copernicus
Leonardo DaVinci
Galileo Galilei
Johan Kepler
Simon Marius

Shop Windows to the Universe Science Store!

Our online store includes fun classroom activities for you and your students. Issues of NESTA's quarterly journal, The Earth Scientist are also full of classroom activities on different topics in Earth and space science!

Windows to the Universe Community



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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

Tycho Brahe

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

Johan Kepler

Johan Kepler was a German astronomer who lived between 1571-1630. Kepler used Tycho Brahe's observations of Mars to show that planetary orbits are not circular, but, in fact, elliptical (or shaped like...more

Henrietta Swan Leavitt

Henrietta Swan Leavitt was born in Massachusetts in 1868. She became interested in astronomy in college. Henrietta started working at Harvard's Observatory for 30 cents an hour. Would you like to work...more


Archimedes was a Greek mathematician and engineer who lived between 287-212 B.C. His greatest contributions are in the field of geometry, where he did much work with circles and their properties. Legend...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF