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The Sun has gone white dwarf, and you're using it for a telescope There is a scheme afoot to send a probe out to 550 AU to use our Sun as a gravitational telescope to see a detailed view of exoplanets. However, in the "very distant future", the Sun will eventually go white dwarf, reducing to 1/100 of its size. In the higher gravity close to the ...


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is there any justification that make watching the sky on these occurrences (equinox/solstice) better than any other day? Not really. The winter solstice has the advantage that it is a nice long night (assuming you're not observing from the equator, or your planet has a negligible axial tilt, etc) but that's about it. Would it be believable that it can only ...


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Being struck by space rocks is a natural process for other space rocks, such as the Earth. There are plenty of real-world materials that have impact origins, such as tektites (which are glasses rather than crystals... there's plenty of further reading out there on lechatelierites, which include impact-produced glasses), shocked quartz (modification of ...


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Replace the Sun with a Red dwarf Since removing your atmosphere posses significant problems to complex organisms, you could go the other route and choose a star that emits less short-wavelength light. In general, an Earth like atmosphere absorbs more light in the red/orange spectrum and scatters more light in the blue/violet spectrum. By switching over to a ...


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Until mechanical and electronic calculators became practical and common, bulk calculations used to be done in specialist counting houses by experts using abaci. In fact, an expert using an abacus could perform calculations as quickly as we might use a calculator. So, if this mechanical computer could process calculations faster than an expert with an abacus,...


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Similarly structured alien life is dangerous Don't overdo the search for a matching planet. When it is too similar, that is already hosting life, your project could fail.. 1. Planet already occupied ? Watch your step ! When life exists already, some of the life forms you find could be intelligent, humanity infringing upon their Galactic Right to survive.. or ...


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Short answer is no. We don't know yet exactly what chemical processes could create DNA. Or how this process is triggered. It is possible that you have all the right conditions but not the exact right chain of events to trigger the reaction. Even if you did what's to say that DNA would evolve into a full ecology. It could just as easily be destroyed long ...


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Colder The light we receive from the Sun depends on its temperature and its apparent size in the sky, but not much else. For example, the edges of the Sun don't seem bright, because even though we are looking at a much larger surface area, we're seeing it at an angle. If we were nearer to the Sun it would take up more size in the sky, but any individual ...


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