Extremely flat cosmic explosion dubbed 'the Cow' defies explanation

A bizarre object called "the Cow" is the flattest explosion ever detected, and the first example of a rare phenomenon called a fast blue optical transient (FBOT).

Extremely flat cosmic explosion dubbed 'the Cow' defies explanation
A bizarre object called "the Cow" is the flattest explosion ever detected, and the first example of a rare phenomenon called a fast blue optical transient (FBOT).