It’s been fewer than three months since a novel coronavirus emerged in China, causing fever, coughing, and, in severe cases, pneumonia. Since then, the disease known as Covid-19 has swept into 72 countries, infecting nearly 93,000 people and killing more than 3,000.What makes the coronavirus scary enough to cause a worldwide run on face masks…

Super Tuesday is by far the biggest day in the Democratic primary process. Follow along for live results here. Here's what happened so far:   Former VP Joe Biden started off the night strong by overwhelmingly winning the Virginia presidential primar…

In 1995, the computer scientist David Gedye had an idea that could only originate at a cocktail party. What if the world’s personal computers were linked together on the internet to create a virtual supercomputer that could help with SETI, the search for extraterrestrial intelligence? The network would be able to sort through the massive…

Health officials in South Korea tested 10,000 people for the coronavirus on Friday alone. This week, they built drive-thru coronavirus screening locations, giving hundreds of patients an assessment of their health in just 10 minutes. The US announced its fir…