Black holes, aliens, multiverse & Mars: Space TED talks you need to watch

Adventures of an asteroid hunter: Carrie Nugent, astronomer at the California Institute for Technology (Caltech)

This enlightening talk centers on our oldest cosmic neighbors, asteroids, and their importance to us here on Earth. Not only can asteroids shed light on the beginnings of the solar system, they also pose a massive risk to our safety. 

For example, in 2013 the Chelyabinsk asteroid entered Earth’s atmosphere over a remote area of Russia and created a shockwave that shattered windows, rocked buildings, and caused hundreds of injuries. A similar incident, on a much larger scale, is thought to be related to the fate of the dinosaurs. As a result, near-Earth asteroids are now constantly monitored in order to try and prevent another catastrophic strike on Earth. 

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