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regolith
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Introduction References & Edit History Related Topics
Images
A false-colour close-up of the asteroid Eros shows dust and fragments of rocky debris inside a large crater. The NEAR Shoemaker spacecraft took the image from about 50 km (30 miles) above the asteroid's surface. The regolith of the redder areas has been chemically altered by small impacts and exposure to the solar wind, whereas the regolith of the bluer areas has been less “weathered.”
Quizzes
Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.
(Bed) Rocks and (Flint) Stones
Related Questions
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Galaxy clusters like Abell 2744 can act as a natural cosmic lens, magnifying light from more distant, background objects through gravity. NASA's James Webb Space Telescope may be able to detect light from the first stars in the universe if they are gravitationally lensed by such clusters. (astronomy, space exploration, galaxies)
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Discover
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regolith: References & Edit History

Article Contributors

Primary Contributors

  • John P. Rafferty
    John P. Rafferty writes about Earth processes and the environment. He serves currently as the editor of Earth and life sciences, covering climatology, geology, zoology, and other topics that relate to the natural world.

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Add new Web site: Cooperative Research Center for Landscape Environments and Mineral Exploration - Regolith. May 17, 2018
New article added. Mar 01, 2011
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