Astronomers spot strange exoplanet with a tail 350,000 miles long
Astronomers using the W. M. Keck Observatory in Hawaii have made a startling finding: a distant exoplanet with a tail hundreds of thousands of miles long. Planet WASP-69 b is located 164 light-years away, and as it orbit, it is followed by a stream of escaping gas that forms a tail — making it look a little like a comet. The planet is a type called ahot Jupiter, meaning it is a large gas giant that orbits very close to its star....