/u/joecooool418's posts in /r/askscience
Do the stars in binary or multiple systems form together, or are they single stars that somehow got too close to each other?
466 upvotes
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Modern humans have existed for about 200,000 years. If you could go back in time and bring back an infant would it be able to grow up and thrive like a baby from this day and age?
245 upvotes
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Since heavy atoms are created in stars when they explode and Lead is higher up on the periodic table than Gold, why is there so much more lead on Earth?
100 upvotes
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Why is it that two costal locations just a few miles apart can have high and low tides up to an hour apart?
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Once infected with the Zika virus, does it ever go away or is it like Herpes and you have it for life? How long would a woman have to wait after exposure before getting pregnant without having to worry about defects?
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If the universe is expanding and all the galaxies are flying away from us, how is the Milky Way on a collusion course with the Andromeda Galaxy?
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If the universe is expanding and every other galaxy is moving away from us, why do scientist say our galaxy is on a collusion course with the Andromeda galaxy?
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