Discover how scientists compare the reflected red, blue, and green light from planets in our solar system to identify Earthlike planets beyond our solar system more easily. Carolyn Crow, a member of the Deep Impact science team, describes how the amount of green, blue, and red light reflected by planets can be plotted. A diagram compares the color data of the planets and shows that Earth is easily distinguishable by its blue color. Although it will be some time before telescopes can really show what extrasolar planets look like, scientists will be able to identify which planet an exoplanet most resembles by measuring its color. CREDITS: https://www.pbslearningmedia.org/credits/npls13.sci.ess.eiu.color/ License: https://www.pbslearningmedia.org/help/full-license-for-section-3c-of-terms-of-use-download-and-share/
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Visit http://science.nasa.gov/ for more. Earth is surrounded by electrons that can be disruptive to our technology. NASA is using high-altitude balloons and spacecraft to monitor and understand these particles in the radiation belts surrounding our planet. Click here to see more videos: https://al
Explore how astronomers and scientists use astronomical units to measure distances in the solar system in this video adapted from NASA. The astronomical unit (au) -- equal to the average distance from Earth to the Sun -- is a convenient unit of measure when talking about distances in the solar syste
