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Roger Tsien, Osamu Shimomura, Martin Chalfie

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The Royal Swedish Academy of Sciences said this week that the 2008 Nobel Prize in Chemistry was awarded to Roger Tsien, a Howard Hughes Medical Institute investigator at the University of California, San Diego; Osamu Shimomura of the Marine Biological Laboratory; and Martin Chalfie of Columbia University. The three were honored for their discovery and development of the green fluorescent protein.
 
According to the Royal Swedish Academy, this year's Nobel Prize in Chemistry rewards the initial discovery of GFP and a series of important developments that have led to its use as a molecular tag in biomedical research. 

The Scan

Dropped Charges

The US Justice Department has dropped visa fraud charges against five Chinese researchers, according to the Wall Street Journal.

More Kids

The Associated Press says Moderna is expanding its SARS-CoV-2 vaccine study to included additional children and may include even younger children.

PNAS Papers on Rat Clues to Human Migration, Thyroid Cancer, PolyG-DS

In PNAS this week: ancient rat genome analysis gives hints to human migrations, WDR77 gene mutations in thyroid cancer, and more.

Purnell Choppin Dies

Purnell Choppin, a virologist who led the Howard Hughes Medical Institute, has died at 91, according to the Washington Post.