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Puffed-up Sun. Data from inside the Sun’s corona — the outermost layer of its atmosphere — helped astrophysicists to create a sharper picture of the Sun’s shifting boundaries than ever before. The ...

The world’s oldest known example of cave art, dating back at least 67,800 years, has been discovered by researchers studying handprints in Indonesia. The find, along with others recently made in the ...

A stencil made on a cave wall about 67,800 years ago is the oldest rock art ever discovered. “This image of a hand was created by someone placing their hand against the wall and then spraying a ...

The outline of a hand made with red pigment on the wall of a cave in Indonesia at least 67,800 years ago may be the world’s oldest rock art, according to a new study. The faded hand stencil, along ...

The 67,800-year-old hand stencil looks like a claw—and provides new clues about early human cognition and the migration to Australia. Shinatria Adhityatama examines cave art in one of the caves of ...

A team of scientists in London may have found a way to repair tooth enamel using an ingredient found in an unexpected place: human hair. Researchers at King’s College London experimented with keratin, ...

A team of scientists in London may have found a way to repair tooth enamel using an ingredient found in an unexpected place: human hair. Researchers at King’s College London experimented with keratin, ...

New biomimetic coating regrows natural enamel in minutes Restored enamel is stronger and smoother than before Potential cure for enamel loss and dentine exposure Tooth enamel is the hardest substance ...

Researchers at the University of Nottingham say they’ve come up with a new type of gel that can repair and rebuild tooth enamel — a potentially game-changing treatment, since dentistry today is ...

Researchers have created a bioinspired gel that can regenerate tooth enamel by mimicking natural growth processes. The fluoride-free material forms a mineral-rich layer that restores enamel’s strength ...

An innovative gel that forms a layer over teeth and then recruits calcium and phosphate ions from saliva to build new enamel has the potential to change dental treatment. To date, we don't have any ...