A volcanic comet moving around in the inner solar system has suddenly become extremely violent, blasting out four times in 48 ...
Comet 12P/Pons-Brooks and Jupiter were seen by NASA's Solar TErrestrial Relations Observatory-A (STEREO-A). Credit: Space.com ...
The cryovolcanic "centaur" comet 29P/Schwassmann-Wachmann has erupted four times in less than 48 hours, becoming unusually ...