TRACE - The Transition Region and Coronal Explorer , a solar telescope satellite. Launched in 1998, it has since taken millions of pictures of the sun and its many spots, prominences, and filaments. There are thousands of amazing images for you to browse, some with extensive explanations. There are movies as well, strange and beautiful. And don't be ignant, get your sun facts straight!
posted by BlackLeotardFront on Jun 12, 2006 - 9 comments

Give a group of Amsterdamers a GPS tracking device for a couple of months, plot their movements over a black background, and the resulting traces map the city through the movements of its inhabitants. Alternately, make your own GPS art, or play GPS Hide and Seek.
posted by gravelshoes on Jan 24, 2003 - 5 comments

Now that you've spanked your monkey sore, try tracing the bunny.
posted by Su on Nov 6, 2001 - 20 comments