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continentalhotspot.com | ||
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www.nature.com
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| | | | | Type Ia supernovae are thought to result from the explosion of white dwarf stars but a full understanding of their formation is lacking. In this review, Howell describes how large surveys are generating sufficient data to challenge and refine existing theories. Empirically, Type Ia supernovae are the most useful, precise, and mature tools for determining astronomical distances. Acting as calibrated candles they revealed the presence of dark energy and are being used to measure its properties. However, th... | |
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darkmattercrisis.wordpress.com
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| | | | | The following is a guest post by Indranil Banik. Indranil is a PHD student at the University of Saint Andrews, part of the Scottish Universities' Physics Alliance. He was born in Kolkata, India and moved to the UK with his parents a few years later.Indranil works on conducting tests to try and distinguish between standard... | |
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tritonstation.com
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| | | | | In the last post, I noted some of the sociological overtones underpinning attitudes about dark matter and modified gravity theories. I didn't get as far as the more scientifically interesting part, which illustrates a common form of reasoning in physics. About modified gravity theories, Bertone & Tait state "the only way these theories can be... | |
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4gravitons.com
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| | | Why did physicists expect to see something new at the LHC, more than just the Higgs boson? Mostly, because of something called naturalness. Naturalness, broadly speaking, is the idea that there shouldn't be coincidences in physics. If two numbers that appear in your theory cancel out almost perfectly, there should be a reason that they... | ||
