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\nNASA | Using Color to Search for Alien Earths\n

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\n\nPublisher:\n\nNASA\n\n\n
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\nNASA astronomer Lucy McFadden and UCLA graduate Carolyn Crow recently made a discovery that will help identify characteristics of extrasolar planets. By comparing the reflected red, blue, and green light from planets in our solar system,...\nNASA astronomer Lucy McFadden and UCLA graduate Carolyn Crow recently made a discovery that will help identify characteristics of extrasolar planets. By comparing the reflected red, blue, and green light from planets in our solar system, they and their team were able to group the planets according to their similarities. The planets fall into very distinct regions on this plot, where the vertical direction indicates the relative amount of blue light, and the horizontal direction the relative amount of red light.

This technique works even when the source of the reflected light is visible only as a point, like exoplanets appear when observed through a telescope. Therefore, scientists can use it to identify earthlike planets more easily.


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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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2:47
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Grade
3rd - 11th
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nNASA Goddard\n\n
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Date
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2010
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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color, nasa, planets, light, mars, plot, jupiter
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Additional Tags

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scott wiessinger, goddard, alien, earth, solar system, astrophysics, dim points, red light, blue light, planet reflects, atmosphere, spot, planet, blue, interesting, reflect, reflects, found, chart
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Classroom Considerations

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Video is ad-free
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\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: NASA | Using Color to Search for Alien Earths\" href=\"/subscription/new\">\"NASA\n\n
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