Coronavirus: Largest study suggests elderly and sick are most at risk
Health officials in China have published the first details of more than 44,000 cases of Covid-19, in the biggest study since the outbreak began.
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![Coronavirus: Largest study suggests elderly and sick are most at risk]()
World's largest plane makes first flight over California
The world’s largest aircraft took off over the Mojave Desert in California on Saturday, the first flight for the carbon-composite plane built by Stratolaunch Systems Corp, started by late Microsoft co-founder Paul Allen, as the company enters the lucrative private space market.
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![World's largest plane Stratolaunch makes first test flight]()
