/u/Awesomeuser90's posts in /r/askscience
Does the fact that the cosmic horizon of the universe is different for every single point in the universe have any practical effect on bodies in the universe like stars?
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Marvin the Martian said famously: I´m going to blow up the Earth because it obstructs my view of Venus. How often does the Earth, from the perspective of Mars, transit Venus in reality?
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Just as the Earth, Jupiter, the Sun, etc, bulge at their equators when they spin, shouldn´t a spinning black hole do the same?
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If you lived closer to the equator, like in the Levant, in the Sundaland, in NE Brazil, Sicily, etc, 15,000 years ago, how could you tell you were in an deep ice age?
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How do scientists decide how to interpret and judge the results of research done in non democratic polities?
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Given how old the Earth is, and how its geological processes often erase evidence, what kinds of ways could we know if say someone ever set up a colony in the late Hadean Era or other ancient times?
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When we get long enough ago into the past for evidence of whatever, wouldn´t it start to become a significant factor how we deal with the leap days in a calendar and the speed of the rotation of the Earth changing to make the days themselves longer?
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How confident are we that the laws of physics are the same as they were in the past and will remain so in the future?
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