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Hands On Mineral Identification helps you to identify over 14,500 minerals! By M. Darby Dyar, Ph.D. See our DVD collection.
Space Missions
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Space Exploration
For as long as there have been people on Earth, we have looked up at the sky and wondered ...Read more
Human Spaceflight
It was not long after the first space satellites were launched that we succeeded in getting ...Read more
Satellites and Robotic Spacecraft
Satellites and robotic spacecraft are crucial to space exploration. They let us explore space ...Read more
Space Missions Links
These are links to other great web sites about Space Missions. But beware: you don't want ...Read more
Historical Events
7/20 On this date in 1969 Armstrong and Aldrin walked on the Moon Details
8/1 Maria Mitchell, an American astronomer, was born on this date in 1818 Details
8/10 Robert Goddard, an American physicist, died on this date in 1945 Details
Full Earth and Space Science History Calendar (Members only)
Teacher Opportunities
Full Teacher Events Calendar (Educator Members only)
Did you know?
Did you know that, according to Einstein's Theory of Relativity, time slows down near the speed of light?Did you know that we look back in time when we look into the cosmos?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?Refraction
xRefraction : Refraction is the deflection, or bending, of the ray path of a seismic wave caused by its passage from one material to another having different elastic properties; or the bending of a tsunami wave front owing to variations in the water depth along a
Click on the word to find out!
Research Highlights
Silver Tells a Story of Early Earth: Water Here Since Planet's Very Early Days
Tiny variations in the isotopic composition of silver in meteorites and Earth rocks are helping scientists put together a timetable of how our planet was assembled, beginning 4.568 billion years ago. Results...Read more
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Science Blogs
Real Climate: climate science from climate scientists
Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information.
