Pandemonium! Motion of Pluto's Moons Perplexes Scientists

The orbits of Pluto's four smallest moons are even more chaotic than scientists had expected, according to new results from the New Horizons mission, which made a close flyby of Pluto in July. "The way I would describe this system is not just chaos, but pandemonium," Mark Showalter, a co-investigator on the New Horizons mission, said today (Nov. 9) during a news conference at the meeting of the Division for Planetary Sciences of the American Astronomical Society. The new results show that as the