Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News Editorials & Other Articles General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search
2 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
10 million stars - A small slice photo of our galaxy's "bulge" (Original Post) packman Dec 2021 OP
Holy smoke. That is a bit brain busting. Thanks, I think. nt Biophilic Dec 2021 #1
No idea what a galaxy bulge is, so looked it up. Fla Dem Jan 2022 #2

Fla Dem

(27,633 posts)
2. No idea what a galaxy bulge is, so looked it up.
Sun Jan 9, 2022, 01:14 PM
Jan 2022

Thanks for helping me learn something new and awesome!

In astronomy, a galactic bulge (or simply bulge) is a tightly packed group of stars within a larger star formation. The term almost exclusively refers to the central group of stars found in most spiral galaxies (see galactic spheroid). Bulges were historically thought to be elliptical galaxies that happened to have a disk of stars around them, but high-resolution images using the Hubble Space Telescope have revealed that many bulges lie at the heart of a spiral galaxy. It is now thought that there are at least two types of bulges: bulges that are like ellipticals and bulges that are like spiral galaxies.


Artist's impression of the central bulge of the Milky Way

https://en.wikipedia.org/wiki/Galactic_bulge
Latest Discussions»The DU Lounge»10 million stars - A smal...