In 1977, The Voyager program sent two spacecraft to explore the solar system and travel to interstellar space. In this video from NASA's Jet Propulsion Laboratory, learn how Voyager 1 and Voyager 2 are now the farthest any spacecraft has traveled from the Sun, and are still making discoveries in the outer reaches of the solar system. As they continue outward beyond the heliosphere, they will traverse interstellar space for a billion years. Each spacecraft carries a golden record with sounds and images from Earth as a message for any future being that may encounter the spacecraft. See the background essay for more about the Voyager program. CREDITS: https://www.pbslearningmedia.org/credits/npls13.sci.ess.eiu.voyager/ 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
