Covid-19 Was Here Earlier Than Most Americans Thought. Now What?
Epidemiologists aren't surprised that virus was spreading in the US in early February. But those early days offer lessons for how to catch the next wave. https://bit.ly/2zFqylJ
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
