The doctor prepares a dose of the Oxford-Astra-Zeneca vaccine on 28 February at a vaccination unit in London. Holly Adams / Getty Images A single dose of the Pfizer-Bioentech or Ox Xford-AstraZeneca vaccine reduces the risk of hospitalization with Covid-19 by more than 80% in people over the age of …
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Mexican President Andres Manuel Lopez Obrador was watching during a ceremony on February 23 at the Palacio Nacional in Mexico City, Mexico City. Hector Trust / Getty Images Mexican President Andres Manuel Lopez Obrador will on Monday ask U.S. President J. Biden to share some of the Covid-19 vaccine supply, …
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The spacewalk will help carry out upgrades for space stations around the earth. The activity is expected to last about six and a half hours, and you can watch it live on the NASA website and NASA TV channel. Both members of the NASA crew are space te walkers at …
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The footage gives the world a glimpse of the often completely invisible process, including the deployment of parachutes to slow down the spacecraft once it enters the atmosphere. Ian Clarke, a systems engineer at NASA’s Jet Propulsion Laboratory in Pasadena, California, said the 70.5-foot supersonic parachute was an extraordinary engineering …
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The mission, which began in 2018, aims to study the sun and reveal some of its secrets. Over the course of seven years, the probe will travel into the Sun’s atmosphere and come closer to the surface of our star than any previous spacecraft. Venus is key to the success …
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