ScienceCasts: The First Martian Marathon

On Earth, a fast runner takes a few hours to complete a marathon. On Mars, it's taken 11 years. NASA's Opportunity rover crossed that finish line in 2015. Visit http://science.nasa.gov/ for more. Click here to see more videos: https://alugha.com/NASA This video is from 2015

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ScienceCasts: Planetary Defense

NASA's Planetary Defense Coordination Office is working to keep Earth safe from asteroids and other hazards that come from deep space. Visit http://science.nasa.gov/ for more. NASA Planetary Defense: http://www.nasa.gov/planetarydefense Click here to see more videos: https://alugha.com/NASA

ScienceCasts: Ocean Worlds

Visit http://science.nasa.gov/ for more. We once thought oceans made our planet unique, but we’re now coming to realize that ‘ocean worlds’ are all around us. Click here to see more videos: https://alugha.com/NASA