TED-Ed

Ron Shaneyfelt: Is space trying to kill us? (2013x243)

Data de estreia: Mai 28, 2013

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. [Directed by Retchy, narrated by Ron Shaneyfelt].