File:NASA - How Sunlight Pushes Asteroids hDmlB2 BCN8.webm
Original file (WebM audio/video file, VP9/Opus, length 2 min 4 s, 1,920 × 1,080 pixels, 1.22 Mbps overall, file size: 18.01 MB)
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Summary
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English: Rotating asteroids have a tough time sticking to their orbits. Their surfaces heat up during the day and cool down at night, giving off radiation that can act as a sort of mini-thruster. This force, called the Yarkovsky effect, can cause rotating asteroids to drift widely over time, making it hard for scientists to predict their long-term risk to Earth. To learn more about the Yarkovsky effect, NASA is sending a spacecraft called OSIRIS-REx to the near-Earth asteroid Bennu. OSIRIS-REx will observe how Bennu’s shape, brightness, and surface features influence the strength of the Yarkovsky effect, helping scientists to better predict Bennu’s orbit over time and pin down its long-term risk.
This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11964 Learn more about NASA’s OSIRIS-REx mission to asteroid Bennu: http://www.nasa.gov/osiris-rex Visit the University of Arizona’s OSIRIS-REx website: http://www.asteroidmission.org/ Like our videos? Subscribe to NASA's Goddard Shorts HD podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html Or find NASA Goddard Space Flight Center on Facebook: http://www.facebook.com/NASA.GSFC Or find us on Twitter: https://twitter.com/NASAGoddard |
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| Source | YouTube: NASA - How Sunlight Pushes Asteroids – View/save archived versions on archive.org and archive.today |
| Author | NASA Goddard |
Licensing
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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This file, which was originally posted to YouTube: NASA(archive), was reviewed on 19 November 2020 by the automatic software YouTubeReviewBot, which confirmed that this video was available there under the stated Creative Commons license on that date. This file should not be deleted if the license has changed in the meantime. The Creative Commons license is irrevocable.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:26, 19 November 2020 | 2 min 4 s, 1,920 × 1,080 (18.01 MB) | Eatcha (talk | contribs) | Uploaded NASA | How Sunlight Pushes Asteroids by NASA Goddard from Youtube |
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