BBC NEWS WORLD EDITION
Trump impeachment trial opens as senators clash over rules
Viewpoint: 'No crime, no impeachment' is a shaky defence
New China virus: US announces first case
China coronavirus: What we know so far
US census kicks off by counting first person in rural Alaska

THE ECONOMIST - SCIENCE & TECHNOLOGY
A new human coronavirus has appeared in China
A research team builds robots from living cells
What really killed the dinosaurs?
Iran’s attack on Iraq shows how precise missiles have become
Might there soon be a supernova near Earth?

NASDAQ - UP ON VOLUME
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