Again, the Universe makes me go “wow!”

The Boston Globe runs a beautiful feature called “The Big Picture”. The most recent features images of The Sun which are breathtaking.
One thing I find particularly cool is that many of the most detailed pictures were taken with ground based telescopes, such as the Swedish 1-m Solar Telescope. They use the full set of tricks [...]

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Dark matter says “boo!”

Very broadly speaking, the universe is made of three things. About 22% of it holds stuff together. This is called dark matter. Another 74% of it is pushing everything apart; this is dark energy. The last 4% is “everything else” and attends to inconsequential details like galaxies, stars, life, light, and Brad Pitt. While a [...]

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