Africa faces grave risks as COVID-19 emerges, says economist

The first cases of COVID-19 emerged in China last November, and the virus has since moved inexorably to Europe and the United States. The virus didn't arrive in Africa—home to 1.2 billion people—until the end of February, ...

New algorithm examines crime-scene bullets segment by segment

On the morning of March 22, 1915, residents of the small town of West Shelby, New York, awoke to a horrific scene. A woman clad only in a bloodied nightgown lay shot to death in the snow on the doorstep of an immigrant farmhand, ...

The coronavirus and our interconnected economy and biosphere

When I think about the climate problem and the challenges it creates, I am reassured by the fact that we know what causes climate change, we understand its impact and we know how to mitigate it. The forces that are slowing ...

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