The Trifid Nebula (M20) is the trifecta of deep-sky objects: It combines a blue reflection nebula with an emission nebula glowing in red Hydrogen-alpha (Hα) light, all divvied up by opaque lanes of ...

In 2004, scientists with NASA’s Galaxy Evolution Explorer spotted an object unlike any they’d seen in our Milky Way Galaxy: a large, faint blob of gas that seemed to have a star at its center. In the ...

Add Yahoo as a preferred source to see more of our stories on Google. A malevolent, screaming skull face. A witch cackling in profile. An all-seeing eye, gazing red and furious from the cosmic depths.

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 ...