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Mercury Helps Reveal Our Middle-Aged Sun’s Secrets

    Mercury Helps Reveal Our Middle-Aged Sun’s Secrets By Judith E Braffman-Miller About 4.56 billion years ago, our Solar System was born from the relic, shredded fragments left behind by the long-dead, nuclear-fusing furnaces of previous generations of ancient stars. Today, our Sun is a lonely sphere of roiling, glaring, mostly hydrogen gas, but it probably was not always…

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A Giant Planet Or A Tiny Stellar Failure?

    A Giant Planet Or A Tiny Stellar Failure? By Judith E Braffman-Miller Brown dwarfs are clearly the runts of the stellar litter, and are often referred to as “failed stars” because their meager masses are unable to light their stellar fires by way of the process of nuclear fusion–and, for this reason, brown dwarfs cannot shine like true…

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