Add Yahoo as a preferred source to see more of our stories on Google. This image of the Helix Nebula from the Visible and Infrared Telescope for Astronomy (left) shows the full view of the planetary ...

A planetary nebula (PN, plural PNe), is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives. The term "planetary nebula" ...

A stunning new Hubble image reveals the most detailed look yet at the Egg Nebula, the youngest and closest pre-planetary ...

Planetary nebulae have been studied for centuries, but astronomers are getting new looks and a better understanding of the structures and compositions of these gaseous remnants of dying stars thanks ...

Planetary nebulae represent a brief, yet illuminating, phase in the evolution of low- to intermediate-mass stars. These glowing shells of ionised gas are shed in the late stages of stellar development ...

Water ice on Mars, bubbling gas on a distant star, a snow-covered island, and a pre-planetary nebula are featured this week. Plus, a look back at an image of Mars taken by the Dawn spacecraft during a ...

This new James Webb Space Telescope image features a cosmic creepy-crawly called NGC 6537–the Red Spider Nebula. Using its Near-InfraRed Camera (NIRCam), JWST has revealed never-before-seen details in ...