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Is space trying to kill us? – Ron Shaneyfelt

Ron Shaneyfelt | TED-Ed

View full lesson: http://ed.ted.com/lessons/is-space-tr…

How likely is it that a massive asteroid will do major damage to Earth and its inhabitants?

What about the sun — is it dying out anytime soon? And the supermassive black hole at the center of the Milky Way — should we be worried about that?

Ron Shaneyfelt assesses the dangers of space.

Lesson by Ron Shaneyfelt.

Animation by Retchy.