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Covid-19 patients infect half of household: US govt study

People who develop Covid-19 infect around half of their household members, with adults only slightly more likely than children to spread the virus, a US government study said Friday. The paper by the Centers of Disease Control and Prevention (CDC) is the latest to attempt to quantify the...

NASA to launch delicate stowing of Osiris-Rex asteroid samples

NASA's robotic spacecraft Osiris-Rex is set to begin on Tuesday a delicate operation to store the precious particles it scooped up from the asteroid Bennu, but which were leaking into space when a flap got wedged open. The probe is on a mission to collect fragments that scientists hope will...

White House virus testing couldn't protect Trump

His press secretary once described President Donald Trump as the “most tested man in America” when it came to COVID-19. And variations on that message were the White House ready response any time critics questioned the president's lax approach to following guidelines for avoiding the novel...