Questions tagged [intergalactic-space]

Questions regarding the space or objects outside of galaxies.

5 questions with no upvoted or accepted answers
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What fraction of matter is not bound to the galaxies, groups and clusters that we see?

We know that most of the matter in the universe has collapsed into galaxies and galaxies into groups and clusters and that a lot of matter is presently in clusters between the galaxies. But, what ...
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How thick are the intergalactic filaments?

Recently, in October, news came out about the faint intergalactic filaments finally being 'found'. Then, in June, astronomers announced that these things had enough normal matter in them to solve the '...
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Looking for a Dwarf Galaxy < 500 L.y. in Diameter, which is not a Satellite / Companion, or is at least 500 000 L.y. away from another Galaxy

My goal is to learn about an example of a Dwarf Spheroidal or a Dwarf Irregular Galaxy which is not a Satellite / Companion Galaxy (or is at least 500 000 L.y. away from another Galaxy), and doesn't ...
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Could a planet be toss from a galaxy just like it's theorized rogue stars are?

According to this, https://en.wikipedia.org/wiki/Intergalactic_star Rogue stars are theorized to be the intergalactic space because of this, The way these stars arise is still a mystery, but the ...
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What's the density of dark matter (clouds)?

How much mass per unit volume do known dark matter have, for instance in the Bullet Cluster? Does the density vary in space, for example, do individual dark matter structures have denser cores?