Share on Facebook (opens in a new window) Share on X (opens in a new window) Share on Reddit (opens in a new window) Share on Hacker News (opens in a new window) Share on Flipboard (opens in a new ...

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 ...

This may remain a hoot-dunit. Nebula, the six-year-old fugitive European barn owl, remains on the lam nearly three weeks ...

Star Gazers host Trace Dominguez breaks down the 5 different types of nebulae. Star Gazers host Trace Dominguez breaks down the 5 different types of nebulae: emission, reflection, planetary, supernova ...

This colorful composite, captured by the now-defunct Spitzer Space Telescope, shows dark, smoky filaments snaking across a portion of the Nessie Nebula. In the center bottom of the image, a giant tear ...

(Please attempt/guess/answer the poll before reading the 'spoilered' calculations.) A question I've pondered, on occasion, is how much "mass" is in a 'planetary nebula' (the kind of nebula which ...