Скачать или смотреть Asteroid Characterization on Scientists Rock - an Asteroid Day series

Visit our website: http://asteroidday.org | Episode 4: Characterisation. When a survey discovers an asteroid, we try to characterise the object from its orbital elements. When dealing with near-Earth objects beyond the orbital elements, we need to find out how fast it is rotating, what it’s made out of, and what are its surface properties. Did Asteroids bring the minerals and water to create life on Earth and also have the ability to end it?

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Asteroid Day is a global awareness campaign where people from around the world come together to learn about asteroids and what we can do to protect our planet, families, communities, and future generations from future asteroid impacts. Asteroid Day is held each year on June 30, the anniversary of the largest impact in recent history, the 1908 Tunguska event in Siberia.