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Star-Studded Snail Mail

For its third in a series "honoring individuals who have made extraordinary contributions to the advancement of science," the US Postal Service has issued stamps that commemorate the achievements of the late American scientists Melvin Calvin, Asa Gray, Maria Goeppert Mayer, and Severo Ochoa. The federal mail-carrier says it is honoring the late biochemist and Nobel-laureate Ochoa for his pioneering work in RNA synthesis. "The stamp shows Ochoa in his laboratory in 1959, along with figures representing some of his work on protein synthesis," the USPS says. These stamps are available for purchase, here.

HT: Larry Moran at the Sandwalk

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.