With NASA's self-described "picture-perfect" launch of the Discovery shuttle last night, space just got infinitesimally more crowded. I don't know about you, but when I think about interplanetary space, I don't think of premium real estate or routes being issues. It's not like we're fighting over an affordably priced studio apartment in New York City. As it turns out, that's a pretty simple view of space traffic.
Think about it. Thursday afternoon, astronauts on the International Space Station hit the deck as space debris zoomed close. In case you missed it, here's my fellow science blogger Robert Lamb's post about it. Now NASA is reporting that another piece of junk is heading toward the station and may alter the course of the inbound Discovery shuttle. These collisions or close calls aren't even counting satellites crashing into one another, as a Russian and U.S. satellite did back in February, or the threat (albeit remote) that near-Earth objects present.