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

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Once Andromeda begins to collide/merge with the Milky Way, do we have a rough estimate of how long the process would take?

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What is the extent that the "play" behavior exists in other animals?

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On a midsummer's day, how long must your skin be exposed to sunlight before the Vitamin D manufacturing process begins?

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Being that fire operates differently in space, could the Apollo 1 accident have occurred in orbit?

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What is the approximate size of Lagrange Point 2 for Earth?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Once Andromeda begins to collide/merge with the Milky Way, do we have a rough estimate of how long the process would take?	2
What is the extent that the "play" behavior exists in other animals?	1
On a midsummer's day, how long must your skin be exposed to sunlight before the Vitamin D manufacturing process begins?	1
Being that fire operates differently in space, could the Apollo 1 accident have occurred in orbit?	1
What is the approximate size of Lagrange Point 2 for Earth?	1