Tangled Bank #29

Tangled Bank #29 is now up at Organic Matter. It's up to forty articles now, including one of mine. But go read some of the others, too.

For those not familiar with it, the Tangled Bank is a bimonthly, self-nominated compendium of science writing from the blogosphere. There is a nominal focus on biology and natural history, but they're kind enough to humor astronomy types like myself as well.