The stunning image captures a star's dying moments wrapped in dust, light, and a cosmic conundrum still waiting to be solved.

NASA’s Hubble Space Telescope has provided some of the clearest views of the Egg Nebula, a stunning cosmic structure located about 1,000 light-years away in the constellation Cygnus. Published on ...

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 ...

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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(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 ...