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While laughing seems uniquely human, it is not. Researchers now have compared laughter in humans to laughter in the various ...

Sandiegouniontribune.com covers local news in San Diego County, CA, California and national news, sports, things to do and the best places to eat, business and the San Diego housing market.

July 4, 2026 NASA is marking the United States' 250th birthday with four striking red, white, and blue images of deep space from the Chandra X-ray Observatory. The collection features an exploded star ...