News Planetary Science

This is the biggest known comet in our solar system

Its nucleus is about twice the width of Rhode Island and darker than coal

images of comet Bernardinelli-Bernstein with its dust cloud and of its nucleus alone

When the dust cloud surrounding comet Bernardinelli-Bernstein (left) is digitally removed, the bare nucleus (right) measures about 120 kilometers across.

SCIENCE: NASA, ESA, Man-To Hui/Macau Univ. of Science and Technology, D. Jewitt/UCLA; IMAGE PROCESSING: Alyssa Pagan/STScI

By Sid Perkins

- More than 2 years ago

Read another version of this article at Science News Explores

The nucleus of a comet discovered in 2014 is the largest ever spotted.