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  1. ESA (esa@social.oalm.gub.uy)'s status on Thursday, 28-Jun-2018 12:22:53 -03 ESA ESA
    In conversation from gnusrss

    Attachments

    1. What is a near-Earth asteroid?
      from European Space Agency
      We often hear from astronomers and other scientists about 'near-earth asteroids' - lumps of rock and metal that orbit through our Solar System, and pass close enough to our planet to pose an impact risk.But many people wonder what this means, and ask additional questions. How many are the…