Astronomers have discovered a rare celestial jewel -- a so-called Planetary Nebula (PN) inside a 500 million-year-old Galactic Open Cluster (OC) called M37 (also known as NGC2099). This is a very rare ...

If you have access to an 8-inch or larger telescope, look in the northern part of the constellation Andromeda the Princessfor a planetary nebula called the Blue Snowball. Insert an eyepiece that will ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. This landscape of "mountains" and "valleys" speckled with glittering stars is actually the edge ...

A colossal bar of iron hidden inside the Ring Nebula may be the ghostly remains of a planet destroyed by a dying star.

Hubble Telescope image of the Horsehead Nebula. Credit: T.A.Rector (NOIRLab/NSF/AURA) & Hubble Heritage Team (STScI/AURA/NASA ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. It’s one of the most common words used by astronomers—and ...