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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 ...
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What Is a Nebula?

Hubble Telescope image of the Horsehead Nebula. Credit: T.A.Rector (NOIRLab/NSF/AURA) & Hubble Heritage Team (STScI/AURA/NASA) Nebulae are all but impossible to spot in the night sky, but you'd never ...
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 ...
The cosmic butterfly has also produced plenty of PAHs – large hydrocarbon molecules that could play a key early role in ...
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 ...
Oregon stargazers have plenty of reasons to look up throughout August – a month marked by meteor showers, planetary conjunctions, and even a visible nebula. A formation known as the "dumbbell nebula" ...
(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 ...