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Home Q & A Board Science-Related Homework Help Physics
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doit_the_clown doit_the_clown
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7 years ago
Which features highlight and outline the spiral arms in a spiral galaxy?

(a)   Very bright, hot, O and B stars and their surrounding nebulae.
(b)   Many very old, bright, red stars that have burned off their dust and gas clouds and have been orbiting the galactic center for long enough that they have settled into spiral arms.
(c)   Hot gas and dust clouds, which have been condensed and heated by a spiral density wave but which do not yet contain stars.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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discovererdiscoverer
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doit_the_clown Author
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7 years ago
You make an excellent tutor!
jmendoza
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Yesterday
Helped a lot
IvanaVR
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2 hours ago
Thanks
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