Metal Was Leaking From Interstellar Comet Borisov When It Zipped Past Us in 2020
Gaseous nickel was shedding from interstellar comet 2I/Borisov when it briefly visited our solar system two years ago, according to a new study. Sounds like weird behavior for a comet, but as related research shows, the spewing of atomic metals might actually be a regular thing that comets do, whether they're local or...