Enormous 'Cat's Tail' tells of cosmic collision 63 light-years away

Sixty-three light-years from Earth, in the small, faint constellation known as Pictor (which is Latin for "painter"), there lies a strange structure that has puzzled astronomers for the last two years. Nicknamed the "Cat's Tail," this dark feature stretches across an abyss of space about a thousand times the average distance between Earth and the sun.