In November of this year, a comet by the name of ISON will graze past the Sun. Its close encounter has the potential to ignite the comet in such a way that it could be visible from Earth in the middle of the day, and even outshine the Moon at night. Astronomers say it is a potential "comet of the century." And this, dear reader, is what it looks like.
via NASA Captures New Photo of Potential "Comet of the Century".