"Scientists Discover Massive 350,000-Mile Comet-Like Tail on Distant Exoplanet"

The exoplanet WASP-69b, located 160 light-years from Earth, is trailing a massive comet-like tail approximately 350,000 miles long as its atmosphere is blown off by its parent star. New observations from the Keck Observatory in Hawaii reveal that the planet's atmosphere is escaping at a rate of 200,000 tons per second, forming an expansive tail not previously seen. This discovery provides a rare opportunity to study atmospheric mass-loss in real time and understand the critical physics that shape thousands of other planets.