May 21, 2026

Science Chronicle

A Science and Technology Blog

May 21, 2026

Science Chronicle

A Science and Technology Blog

Day: September 6, 2025

Ancient DNAFirst PandemicGenome sequencingPalaeosciencePlagueYersinia pestis
Sucheta Tripathy

Plague: Ancient DNA of Yersinia pestis solves mystery of mass death in Justinian, rewrites pandemic history

Two studies provide new insights into one of the most consequential episodes in human history. Genomic evidence links Y. pestis to the plague of Justinian, marking the begining of the First Pandemic (AD 541-750) in the ancient city of Jerash, Jordan. Genomic evidence also shows Y. pestis was circulating in human populations for millennia even before the Justinian outbreak

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AdolescentsChildrenMental healthSuicides
Ramya Pillutla Shubhda Sharma Soumitra Pathare Avinash Kumar

Why More Children in India are Dying by Suicide: A Deeper Look

A strange statistic emerges in the data on child suicides in India — contrary to what is seen in other age groups, a higher number of girls die by suicide when compared to boys. 55% of all suicides under-18 years age are among girls. The reasons: higher incidence of sexual assault, love failure, unwanted marriage and pregnancies, and limited emotional support from family members

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