Astronomers identify 2 extra moons behind Uranus
Moscow-based astronomers have discovered what they believe are two previously-identified moons behind Uranus after re-examining old data collected by NASA's space probe Voyager 2. They found wavy patterns in two of Uranus' surrounding rings, consistent with gravitational pull from moons. Voyager 2 could not detect the two moons clearly as they are small, up to 14 km in diameter.