All Questions
Tagged with intergalactic-space interstellar-medium
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How do we estimate the amount and distribution of Helium in interstellar and intergalactic space?
Quoting from wikipedia: Helium
... is the second lightest and second most abundant element in the observable universe (hydrogen is the lightest and most abundant). It is present at about 24% of the ...
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Local Bubble in space
Is the Local Bubble alone in space or is there another bubble similar to the Local Bubble in space, i.e., do we live in a special place or is this a more general phenomenon?
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Why is the Warm-Hot Intergalactic Medium (WHIM) so hot, and what is "collisionless shock heating"?
The Phys.org article Researchers find last of universe's missing ordinary matter says:
Ordinary matter, or "baryons," make up all physical objects in existence, from stars to the cores of ...
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Would Bussard Ramjets work in other places in or near the galaxy? [closed]
Sorry if this this doesn't really fit this forum, but WorldBuilding does not like questions like these. I cannot find the minimum density of hydrogen a Bussard ramjet (an interstellar ship propelled ...
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