...a tiny, icy toehold just one-third of a mile wide. The discovery, made by a team of astronomers scouring Hubble Space Telescope observations, sets a new record for the smallest Kuiper Belt object found. Previously, the smallest known Pluto sibling was a 30-mile-wide Kuiper Belt object... Based on the number of known objects in the Kuiper Belt, scientists would have expected to find between 30 and 100 tiny bodies in their analysis of 50,000 guide stars observed by Hubble. So far, the team has only looked at 30 percent of the available Hubble data. "We only found one," Schlichting said....