Hubble Detects Smallest Known Kuiper Belt Object

Kuiper Belt Object Occults Star

This is an artist's impression of a small Kuiper Belt Object (KBO) occulting a star. NASA's Hubble Space Telescope recorded this brief event and allowed astronomers to determine that the KBO was only one-half of a mile across, setting a new record for the smallest object ever...

Smallest Kuiper Belt Object Detected

This is an artist's impression of a one-half-mile-diameter Kuiper Belt Object (KBO) that was detected by NASA's Hubble Space Telescope. The icy relic from the early solar system is too small for Hubble to photograph. The object was detected when it passed in front of a...