Astronomers have identified a rare type of binary star system containing a rapidly spinning millisecond pulsar and a helium star companion, formed via common envelope evolution. Although such systems ...

Only 16 to 84 other examples of this exotic system may exist in our entire galaxy. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Astronomers ...

Everything we know about the formation of solar systems might be wrong, says University of Florida astronomy professor Jian Ge and his postdoc, Bo Ma. They’ve discovered the first “binary-binary” – ...