Babies weren't supposed to be mourned in the Roman Empire. These rare liquid-gypsum burials prove otherwise. By - Kristina Killgrove - published - 25 February 26 - Despite historical records saying otherwise, Roman babies were mourned at death, research into unique plaster burials from York reveals.

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Chinese astronauts describe moment a crack was discovered on Shenzhou-20 spacecraft - By - Patrick Pester - published - 25 February 26 - Taikonauts from the fated Shenzhou-20 mission have described what happened when they discovered cracks on their spacecraft as they prepared to depart China's Tiangong space station last year.

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Kazakhstan plants tens of thousands of trees in giant effort to reintroduce tigers - By - Patrick Pester - published - 25 February 26 - Kazakhstan planted 37,000 seedlings and cuttings in South Balkhash last year to prepare for the return of its tigers, which disappeared more than 70 years ago.

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We now know why shoes squeak, and it involves miniature lightning bolts - By - Kenna Hughes-Castleberry - published - 25 February 26 - Harvard engineers think they've found the reason basketball shoes squeak, and it's due to pockets of friction between the rubber and the court.

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Physics & Mathematics

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'Rare and enigmatic' structures found at the Milky Way's center in largest-ever map of its kind - By - Brandon Specktor - last updated - 25 February 26 - Scientists using the ALMA telescope have created the most-detailed-ever map of the Milky Way's chaotic center. The observations could open a window to the ancient universe as it appeared shortly after the Big Bang.

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COVID-19 vaccination during pregnancy may cut risk of preeclampsia - By - Gabriela Galvin - published - 25 February 26 - A study of more than 6,500 mothers found that COVID-19 vaccination during pregnancy significantly lowered the risk of preeclampsia, a dangerous blood-pressure disorder.

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14,000-year-old ivory tools found in Alaska hint at how Clovis ancestors first arrived in the New World - By - Charles Q. Choi - published - 24 February 26 - Ancient artifacts unearthed in Alaska revealed migrants from Asia might have come to the Americas via an inland route, and not a coastal path.

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Far fewer people are related to Genghis Khan than previously assumed, new genomic study suggests - By - Kristina Killgrove - published - 24 February 26 - Some experts have suggested as many as 1 in 200 men in the world are related to Genghis Khan. But a new genomic study reveals the number is significantly lower.

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Obesity is linked to 1 in 10 deaths from infection worldwide - and scientists are still learning why - By - Stephanie Pappas - published - 24 February 26 - A new study finds that people with obesity are more likely to be hospitalized with or die from severe infections.

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Viruses, Infections & Disease

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How to see the March 3 'blood moon' eclipse from anywhere on Earth - By - Jamie Carter - published - 24 February 26 - The final "blood moon" total lunar eclipse until 2029 is coming to North America this Tuesday (March 3). Here's how to watch it online.

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2,800-year-old mass grave of women and children discovered in Serbia reveals 'brutal, deliberate and efficient' violence - By - Kristina Killgrove - published - 23 February 26 - An analysis of a mass grave found in northern Serbia is revealing new information about violence in Early Iron Age Europe.

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Scientists may have seen a star collapse directly into a black hole without exploding first - By - Evan Gough - published - 21 February 26 - A new study looked at how a massive star in the Andromeda Galaxy disappeared due to the formation of a black hole

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