If you're hungry for apocalyptic images (and who isn't?) I recommend this video, of a comet spotted by an amateur astronomer earlier this month as it smashed dramatically into the sun. That's right, even a wee comet made of nothing but ice and rock can cause a giant flame to leap from the sun's surface as it hits.

OK, maybe not. NASA points out sensibly that the giant eruption you see here is unrelated to the comet hit.

This video, and more live feeds of the sun, are available via SOHO