Out near the orbit of Jupiter, a faint speck of light is moving through the black of space. At first glance it doesn’t look like much, no brighter than a thousand distant stars speckling the velvet sky behind it; indeed, it takes a big telescope make out that it is a comet.

But what a comet it could turn out to be….

Later this year, “Comet ISON” could blossom into a striking naked eye object visible even in broad daylight.

“Comet ISON is a sungrazer,” explains Karl Battams of the Naval Research Lab. “The orbit of the comet will bring it very close to the sun, which we know can be a spectacular thing.”

Source: NASA – Comet of the Century?