The new measurements pinpoint the location of a disk of warm dust that surrounds Zeta Leporis. The dust lies about the same distance from the star as the solar system's asteroid belt lies from the sun, Margaret M. Moerchen and Charles M. Telesco of the University of Florida in Gainesville and their colleagues report in an upcoming Astrophysical Journal Letters... The close-in dust around Zeta Leporis probably arose when several asteroids bumped into each other, grinding rock into a fine spray of particles, or when a large asteroid, perhaps 100 kilometers in diameter, suffered a cataclysmic wallop, Moerchen and Telesco...