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Health & Medicine

Why finding bird flu in a U.S. pig for the first time is raising new worries

Swine can act as so-called “mixing vessels” for human and bird flus, giving avian viruses an opportunity to adapt for spreading in people.

Psychology

Smiles tweaked by AI can boost attraction, a speed-dating study shows

Using face filters to alter expressions manipulated feelings of attraction, raising questions about how such technology may influence social interactions.

Planetary Science

50 years ago, scientists found a new moon orbiting Jupiter

In 1974, astronomers discovered Jupiter’s 13th moon. They now know of at least 95 moons and have launched missions to study some up close.