[sci.astro] Cosmology (Astronomy Frequently Asked Questions) (9/9)
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[sci.astro] Cosmology (Astronomy Frequently Asked Questions) (9/9)
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Section Contents
News Headers
Introduction
Table of Contents
I.01. What do we know about the properties of the Universe?
I.02. Why do astronomers favor the Big Bang model of the Universe?
I.03. Where is the center of the Universe?
I.04. What do people mean by an "open," "flat," or "closed" Universe?
I.05. If the Universe is expanding, what about me? or the Earth? or the Solar System?
I.06. What is inflation?
I.07. How can the Big Bang (or inflation) be right? Doesn't it violate the idea that nothing can move faster than light?
I.08. If the Universe is only 10 billion years old, how can we see objects that are now 30 billion light years away? Why
I.09. How can the oldest stars in the Universe be older than the Universe?
I.10. What is the Universe expanding into?
I.11. Are galaxies really moving away from us or is space-time just expanding?
I.12. How can the Universe be infinite if it was all concentrated into a point at the Big Bang?
I.13. Why haven't the CMB photons outrun the galaxies in the Big Bang?
I.14. Can the CMB be redshifted starlight?
I.15. Why is the sky dark at night? (Olbers' paradox)
I.16. What about objects with discordant redshifts?
I.17 Since energy is conserved, where does the energy of redshifted photons go?
There are different ways to measure distances in cosmology?
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Last Update March 27 2014 @ 02:11 PM
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