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Apr 2026
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Why was Roman concrete so durable? Scientists say it could heal itself

The legacy of Roman architecture

A green comet will come closest to Earth for the first time since the Stone Age

The comet last made its way through our solar system 50,000 years ago

Paleontologist accused of making up data on Dinosaur-killing asteroid impact

A researcher claims that Robert DePalma published a faulty study in order to get ahead of her own work on the Tanis fossil site

NASA: Impressive images of a black hole that “devours” & destroys a star (video)

The astronomers suddenly noticed an uncontrolled growth of high-energy X-rays emitted from the black hole

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