comet, comet bernardinelli-bernstein, largest comet, new discoveries, research

New Study Shows Largest Comet Ever Observed Was Active at Near-Record Distance

A new study by University of Maryland astronomers shows that comet Bernardinelli-Bernstein (BB), the largest comet ever discovered, was active long before previously thought, meaning the ice within it is vaporizing and forming an envelope of dust and vapor known as a coma. Only one active comet has been observed farther from the sun, and ...

Troy Oakes

Artist's rendition of the Bernardinelli-Bernstein (BB) comet.