Are we really going to see Betelgeuse explode?

Will Betelgeuse really explode in our lifetime? This explains what scientists know about the dying red supergiant, how close it is to going supernova, and what we would see from Earth. Could it turn into a second sun in our sky? Easy explanation of distance, danger, and what a supernova would actually look like to us. Learn more about your ad choices. Visit megaphone.fm/adchoices