Dark matter, which surrounds most galaxies, plays a key role in the structure of the cosmos. But we can't see it. Or can we? Recently, astronomers used a remarkable effect predicted by Einstein to spot a very tenuous bridge of dark matter linking two galaxy clusters.
The second law of thermodynamics is a kind of warning to cities and civilization. No matter how clever we are, disorder, waste and pollution will always follow from our work organizing societies into cities.
Each month, NPR's All Things Considered invites a poet into the newsroom to see how the show comes together, and to write an original poem about the news. This month, our NewsPoet is Tess Taylor. Want to write your own poem about the day's news? You can put them in the comments below.
NPR's Scott Simon says voters and candidates might benefit if more politicians took real vacations — if they went somewhere, for at least a short time, where no one knows them. Where they don't have to ask for votes, money or spout talking points.
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