A few days ago, NASA and the US Chess Federation teamed up to host a space vs. Earth chess game. Astronaut Greg Chamitoff is playing one side, while the other side's moves will be determined by a public vote. Four potential moves will be selected each weekday by a chess club comprised of students from kindergarten through third grade. Once the selections are made, visitors to the USCF's site can vote for the move they like best. The USCF is maintaining a blog to update the moves and board position, and to provide commentary.