"Explosion Alters Devil Comet's Appearance, Turning it Green and Hornless"

The 'Devil Comet', also known as 12P/Pons-Brooks, has lost its iconic horns after a massive volcanic eruption. Astronomers have observed new characteristics in the comet, including a mysterious shadow and a rare green hue. The comet, which is cryovolcanic and has an icy shell, will make its closest approach to Earth in over 70 years next summer. The recent eruption caused the comet's coma to expand, but the distinctive horns were not visible. It remains uncertain if the horns will reappear in the future.