"The discovery provides a unique cosmic laboratory for studying these mysterious objects." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A rare ...

A massive white dwarf and a sun-like "blue lurker" star tell a remarkable story of what was once a triple-star system in the M67 cluster.

"When I first spotted this system with a very high total mass on our galactic doorstep, I was immediately excited." When you purchase through links on our site, we may earn an affiliate commission.

Stars are the fundamental building blocks of our universe. Most stars host planets, like our sun hosts our solar system, and if you look more broadly, groups of stars make up huge structures such as ...