Something mysterious has gone bump in the cosmos. About 800 million light-years away, a black hole devoured an unidentified object, and the resulting cosmic merger released enough energy to wrinkle ...

The human eye does not actually see purple, as purple is not a color on the visual spectrum. Purple is a combination of wavelengths from opposite extremes of the spectrum, which technically deosn’t ...

Not everyone who causes harm does it in obvious or dramatic ways. In fact, psychology suggests that people who aren’t very good to others often blend in seamlessly. They may be likable, competent, or ...

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