/u/empire314's posts in /r/askscience

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If the CMB was released when it was cool enough for recombination to happen, how are different parts of CMB hotter than others?

11 upvotes

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Why is such a large portion of our star systems mass concentrated at the Sun?

9 upvotes

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Is there nuclear fission going on at stars as well?

9 upvotes

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Is there a limit to how often a particle can quantum tunnel?

8 upvotes

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Why didn't all matter of the universe just form a single big black hole during the big bang?

8 upvotes

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What determines whether a white dwarf ignites a classical nova, or a type IA supernova after it has accumulated enough mass?

8 upvotes

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How can the exoplanet HD 100546 b possibly be more than 5 jupiter diameter in size?

7 upvotes

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To reach the Sun, less delta-v is required if you go "out" first, and then descent, compared to going straight to the Sun from Earth. How is this consistent with conservation of energy?

7 upvotes

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If inbreeding is bad, how can many life forms breed asexually without a problem?

6 upvotes

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Why do clouds always seem to sail so smoothly in the skies, even when on the ground the wind comes in irregular short gusts?

6 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If the CMB was released when it was cool enough for recombination to happen, how are different parts of CMB hotter than others?	11
Why is such a large portion of our star systems mass concentrated at the Sun?	9
Is there nuclear fission going on at stars as well?	9
Is there a limit to how often a particle can quantum tunnel?	8
Why didn't all matter of the universe just form a single big black hole during the big bang?	8
What determines whether a white dwarf ignites a classical nova, or a type IA supernova after it has accumulated enough mass?	8
How can the exoplanet HD 100546 b possibly be more than 5 jupiter diameter in size?	7
To reach the Sun, less delta-v is required if you go "out" first, and then descent, compared to going straight to the Sun from Earth. How is this consistent with conservation of energy?	7
If inbreeding is bad, how can many life forms breed asexually without a problem?	6
Why do clouds always seem to sail so smoothly in the skies, even when on the ground the wind comes in irregular short gusts?	6