The cryovolcanic "centaur" comet 29P/Schwassmann-Wachmann has erupted four times in less than 48 hours, becoming unusually ...

It is the most powerful outburst from the city-size oddball in more than three years ... It is one of around 500 comets known as "centaurs" that spend their entire lives confined to the inner ...

Researchers say the scale of Bernardinelli-Bernstein, which has a mass of 500 trillion tons, is significant because it provides a clue about the size range of other comets orbiting in the distant ...

including their size and composition. Toward this end, my colleagues and I work to characterize new long-period comets. The largest known one, Bernardinelli–Bernstein, discovered just three ...

Sungrazers often vaporize due to the intense, hot solar atmosphere. “Comets are really hard to predict, and sungrazing comets like this are even harder than most. At discovery time, astronomers ...