An enormous volcanic comet the size of a small city has violently exploded for the second time in four months as it hurtles toward the sun. And just like the previous eruption, the cloud of ice and gas emitted what looked like a gigantic pair of horns.
On Oct. 5, astronomers detected a large outburst from 12P, after the comet became dozens of times brighter due to the extra light reflecting from its expanded coma, according to the British Astronomical Association , which has been closely monitoring the comet 12P will reach its closest point to Earth on April 21, 2024, when it may become visible to the naked eye before being catapulted back toward the outer solar system. It will not return until 2095.