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Grades 9-12

Figure 10: A sketch of the outside and inside of a Douglas fir cone.

Young Naturalist Awards Essay

Salmon Creek: A Search for the Missing Salmon

One hundred years ago, salmon were so plentiful that children could stack them along the banks like firewood. This seventh-grader wanted to know what happened to all the salmon in Salmon Creek.


Article, Online Resource

Profile: Ole Roemer and the Speed of Light

While studying one of Jupiter's moons, Ole Roemer happened upon the first good estimate of the speed of light. Before his 1676 discovery, scientists assumed that light could not be measured.


Article, Online Resource

Profile: Vera Rubin and Dark Matter

For every visible star in the observable universe, there are nine masses that are invisible and unidentified. Learn more about the astronomer who proved the existence of dark matter.


Article, Online Resource

Profile: Lyman Spitzer and the Space Telescope

The idea of launching a telescope into orbit was first suggested in 1923, but the idea wasn't realized until nearly 70 years later. Along the way, there were several obstacles and setbacks.

cosmic horizons_thumb

Article, Online Resource

Profile: Fritz Zwicky's Extraordinary Vision

Astronomer Fritz Zwicky was the first person to conceive of supernovas, neutron stars, dark matter, and gravitational lenses. So why don't more people know his name?


American Museum of Natural History

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Phone: 212-769-5100

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