According to scientist Brad Carter, the star Betelgeuse could go super-nova as soon as this year (meaning it may have already done so). As long as we don't all die from gamma radiation, the sky could appear as though we have a twin sun, similar to that of Luke Skywalker's planet.
http://www.news.com.au/technology/s...elgeuse-explodes/story-fn5fsgyc-1225991009247
http://www.news.com.au/technology/s...elgeuse-explodes/story-fn5fsgyc-1225991009247