A fresh look at red giant stars offers key insights into cosmic distance measurements and a way to measure the universe's expansion with the highest accuracy. In a constantly expanding universe, ...

A tug-of-war between neighboring stars led to the formation of two strange types of red giant star, as seen in the eyes of a lost telescope. Astronomers reported finding 40 examples of two different ...

The jug-like structure is a rare and short-lived double-lobed planetary nebula. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The stellar ...