News Planetary Science

Two travelers from far beyond Neptune return home

Objects from Oort cloud test ideas about solar system formation

Oort cloud objects

NOWHERE TAIL Oort cloud objects C/2013 P2 (left) and C/2014 S3 (center) are missing tails of ice and dust whereas Comet Hale-Bopp (right) blazes with light in an image taken in 1996.

K. Meech et al.

By Christopher Crockett

- More than 2 years ago

TUCSON, Ariz. — Two visitors from the edge of the solar system appear to be returning to their birthplace.