Are egg cells in aging primates protected from mutations?
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Graphs showing increase in mutation frequency in mitochondrial DNA in aging rhesus macaques

Mutations in the mitochondrial DNA in developing egg cells increase less with age in rhesus macaques than in other tissues

​​Nearby star could help explain why our Sun didn’t have sunspots for 70 years
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11 images of the sun with sunspots Credit: NASA

A sun-like star could explain why our Sun stopped its sunspot cycles 300 years ago during the Maunder Minimum, according to Penn State.

How grasses like wheat can grow in the cold
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Artist's depiction of cold adapted grasses, with gene duplications represented by colored boxes

Relationships among a grass subfamily, including wheat and barely, reveals gene-duplication events that contributed to cold adaptation.

Studying diseases with better delivery of gene-editing tools
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Xiaojun (Lance) Lian outside
The Unfolding Story of a Kilonova Told in X-rays
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illustration of kilonova

Astronomers may have discovered a kilonova—a powerful event that occur when two neutron stars merge.

A new molecular family tree of grasses
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Artist’s depiction of several important crop plants in the grass family

Massive study of grass family tree provides clues to the evolution of a type of photosynthesis involved in heat and drought tolerance.

New screening system may point the way to clean, renewable hydrogen power
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Hydrogen symbol among water waves

A new system system for detecting the production of hydrogen gas has been designed by Penn State researchers.

Repurposing FDA-approved drugs may help combat COVID-19
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protease activity in two panels

Several FDA approved drugs significantly reduce the ability of the Delta variant of SARS-CoV-2 to replicate in human cells.

Omicron detected for first time in white-tailed deer
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Deer on lawn in front of house

New research shows some white-tailed deer living in Staten Island, New York, are actively infected with the Omicron variant of SARS-CoV-2.

Former chemistry graduate student, Hayley Knox, collaborates on paper in Nature
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illustration of the enzyme TokK

Former chemistry graduate student, Hayley Knox, collaborates with Penn State and Johns Hopkins researchers on a paper in Nature

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