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Peek-A-Boo, I See You

A study in Nature Communications describes a new method of electron microscopy, says Popular Science's Rebecca Boyle — one that could allow researchers to see living cells in high resolution without the need for staining, and possibly harming, them. "It's called electron ptychography, and it enables a dramatic improvement in the resolution of the best-available microscopes," Boyle says. "The system reconstructs an image from the electron waves scattered by a sample, and has no fundamental experimental limits imposed by constraints like blurry glass or wavelengths of visible light." John Rodenburg, of the University of Sheffield in the UK, led the research team that developed this method. In a statement, he said this approach would allow researchers to see "how atoms sit next to one another in a solid object."

The Scan

Tens of Millions Saved

The Associated Press writes that vaccines against COVID-19 saved an estimated 20 million lives in their first year.

Supersized Bacterium

NPR reports that researchers have found and characterized a bacterium that is visible to the naked eye.

Also Subvariants

Moderna says its bivalent SARS-CoV-2 vaccine leads to a strong immune response against Omicron subvariants, the Wall Street Journal reports.

Science Papers Present Gene-Edited Mouse Models of Liver Cancer, Hürthle Cell Carcinoma Analysis

In Science this week: a collection of mouse models of primary liver cancer, and more.