/u/zjbird's posts in /r/askscience
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How far can we send spacecrafts (or satellites) from our solar system and still receive information from them?
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If we think there are multiple universes, why do we still use the term "universe" to explain a collection of galaxies? Wouldn't "multiverse" just be another name for universe and collection of galaxies just be called..a collection of galaxies?
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Question for Biologists: Is Bovine Serum Albumin okay to eat/drink as an ingredient for a vegetarian that allows themselves to eat/drink dairy products?
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How does the human digestive system split waste into liquids and solids in a way that fecal matter can be solid or liquid or a combination of the two, yet, urine (and other things passed via the urethra) are liquid and never solid?
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What's the point of mass where gravity is too strong for light to leave, and what sort of effects happen at the "in between" zone of light being emitted and light suddenly unable to escape?
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What is the fastest possible speed believed to currently be possible for human space travel, and what is the ratio of that speed in comparison to the speed of light?
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