The exploding star is 2.2 billion light years away, and is named SN 2021yfj. The Keck data showed the presence of ionized silicon, sulfur, and argon. These have never been observed in a supernova ...

An international team of scientists, led by Northwestern University astrophysicists, has detected a never-before-seen type of exploding star, or supernova, that is rich with silicon, sulfur, and argon ...

EVANSTON, Ill. — Astronomers have observed what they are calling a new type of supernova, which has provided an unparalleled glimpse into what happens deep within a star just before it explodes. A ...

SN 2021yfj is a new kind of supernova, challenging our understanding of stellar evolution. Its progenitor lost its outer shells well before the supernova happened and only consisted of its ...