The SARS-CoV-2 Coronavirus The virus that causes Covid-19 is currently spreading around the world. At least six other types of coronavirus are known to infect humans, with some causing the common cold and two causing outbreaks: SARS and MERS.
![How Coronavirus Hijacks Your Cells (Published 2020)](https://cdn-ak-scissors.b.st-hatena.com/image/square/c45b43cf2196035da9c105af4d70a1e68879f912/height=288;version=1;width=512/https%3A%2F%2Fstatic01.nyt.com%2Fimages%2F2020%2F03%2F10%2Fus%2Fhow-coronavirus-infects-a-cell-promo-1583866148761%2Fhow-coronavirus-infects-a-cell-promo-1583866148761-facebookJumbo-v3.jpg%3Fyear%3D2020%26h%3D549%26w%3D1050%26s%3D0347bf5d7adb8a284b136aa5c1b48593987788d7caaf81027d2dd67939933aa9%26k%3DZQJBKqZ0VN)
Freeman J. Dyson at the Institute for Advanced Study in Princeton, N.J., in 1972. He gained public renown as a writer and technological visionary.Credit...William E. Sauro/The New York Times Freeman J. Dyson, a mathematical prodigy who left his mark on subatomic physics before turning to messier subjects like Earth’s environmental future and the morality of war, died on Friday at a hospital near P
Katherine Johnson, part of a small group of African-American women mathematicians who did crucial work at NASA, in 1966.Credit...NASA/Donaldson Collection, via Getty Images They asked Katherine Johnson for the moon, and she gave it to them. Wielding little more than a pencil, a slide rule and one of the finest mathematical minds in the country, Mrs. Johnson, who died at 101 on Monday at a retireme
A prototype of NASA’s Jet Propulsion Laboratory’s Buoyant Rover for Under-Ice Exploration, a technology that could one day explore oceans under the ice layers of planetary bodies, being tested in a lake near Utqiagvik, Alaska.CreditCredit...JPL-CalTech/NASA CASEY STATION, Antarctica — Near a nice, big hole in the ice and beneath the stone gray, midday Antarctic summer skies, six Adélie penguins st
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