International Asteroid Day: Are we ready if an asteroid strikes Earth?

International Asteroid Day: Are we ready if an asteroid strikes Earth?  CNN Asteroid Day 2018: Raising Awareness of the Risk of Space Rocks  Space.com How to tell an asteroid from a comet, even when its from outside our solar system  Popular Science Asteroid Day LIVE 2018 - Asteroid Day  Asteroid Day Ex-NASA astronaut: World Asteroid Day – Will we defend our planet together or perish like the dinosaurs?  Fox NewsFull coverage

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