A little snippet of space-pr0n for ya; last week, the Japanese SELENE/Kaguya lunar orbiter probe shot some video footage of the Earth passing between the Moon and the Sun.

The ‘diamond ring’ effect is only ever seen on Earth on the rare occasion that we witness a total solar eclipse; this is probably the easiest way to see something otherwise incredibly rare (and mind-expandingly awesome, as far as I’m concerned). [via PinkTentacle]