A mysterious volcanic comet has just reawoken, unleashing four major eruptions in less than 48 hours and spraying out enough of its icy guts to make the city-size object appear almost 300 times ...

A volcanic comet moving around in the inner solar system has suddenly become extremely violent, blasting out four times in 48 hours. Researchers say that the activity has caused it to spew out so ...

Comet 29P/Schwassmann-Wachmann is a centaur ... Sometimes internal pockets of a particular ice will explode, causing an ice volcano. The dust that is carried into space when this occurs reflects ...

Comet 12P/Pons-Brooks is also classed as a cryovolcanic comet - meaning it has an icy volcano that erupts dust, gases and ice when pressure builds inside it as it is heated. The NSC said it could ...

Earth formed 4.54 billion years ago. The first period of the history of the Earth was known as the Hadean Period which lasted ...

With NASA’s fleet of heliophysics spacecraft, scientists monitor our Sun and investigate its influences throughout the solar ...