Variant Hunters Race to Find New Strains Where Testing Lags
In countries without much sequencing, new versions of the Covid virus can go unnoticed. Scientists across Africa are collaborating to track them down. https://bit.ly/2QbKJQA
For the first time, a commercial craft will bring a crew of civilians to the space station. It’s a harbinger of space tourism’s future—and its inequities. https://bit.ly/3jf25HC
