Grades 9-12

A Beach Walk in New Mexico

Young Naturalist Awards Essay

A Beach Walk in New Mexico

While planting strawberries in her backyard, this freshman from New Mexico discovered a fossilized seashell. Follow along as she searches for evidence of her state's watery past.

Profile: Lyman Spitzer and the Space Telescope

Online Resource, Article

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.

Profile: Fritz Zwicky's Extraordinary Vision

Online Resource, Article

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?

Profile: Ole Roemer and the Speed of Light

Online Resource, Article

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.

Profile: Vera Rubin and Dark Matter

Online Resource, Article

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.

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