Discover how astronomers determined the unexpected brightening of an asteroid named Scheila was likely the result of an impact with a much smaller asteroid. This video from NASA looks at how the Swift satellite and the Hubble Space Telescope helped astronomers investigate what they thought was an unusual comet but was actually the aftermath of a collision between asteroids. Astronomers ruled out the possibility of a comet, using data about the shape, evolution, and content of the dust plumes to help them reconstruct what happened. This video is available in both English and Spanish audio, along with corresponding closed captions. This resource is part of the NASA Planetary Sciences Collection. CREDITS: https://www.pbslearningmedia.org/credits/npls12.sci.ess.eiu.asteroidcrash/ LICENSE: https://www.pbslearningmedia.org/help/full-license-for-section-3c-of-terms-of-use-download-and-share/
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At the end of a day devoted to Earth, people can look to the heavens for a beautiful shower of Lyrid meteors. Visit http://science.nasa.gov/ for more. http://www.nasa.gov/content/earth-right-now/ Click here to see more videos: https://alugha.com/NASA
Satellite Based Flood Monitoring Central to Relief Agencies Disaster Response: http://www.nasa.gov/feature/goddard/satellite-based-flood-monitoring-central-to-relief-agencies-disaster-response Visit http://science.nasa.gov/ for more. To download this episode, go to http://sciencecasts.nasa.gov/ Pr
This week, Earth passes through a stream of debris from Comet Swift-Tuttle, source of the annual Perseid meteor shower. Forecasters say the show could be especially good this year because the Moon is nearly new when the shower peaks on Aug. 12-13. Visit http://science.nasa.gov/ for more. Click her
