You know Dasher and Dancer and Prancer and Vixen, Comet and Cupid and Donner and Blitzen. But do you recall the most famous animated GIF reindeer of all? [more inside]
Tvashtar in Motion. Awesome five-frame GIF of fountaining sulfuric lava on Io courtesy New Horizons as it swung by Jupiter earlier this year. Found via Planetary Society Blog (Thank you, Emily). More on Tvashtar.