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COVID-19 case clusters offer lessons and warnings for reopening

COVID-19 case clusters offer lessons and warnings for reopening

Several months into the COVID-19 pandemic, countries are looking for ways to restart their economies, public health officials are looking to guide safe reopening and people are eagerly looking to escape cabin fever. But tough lessons have surfaced from countries that were hit early in the pandemic and have already reopened. Consider South Korea: In...

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An unexpected result from a dark matter experiment may signal new particles

An unexpected result from a dark matter experiment may signal new particles

An experiment searching for cosmic dark matter may have finally detected something. But it’s not dark matter. Scientists with the XENON1T experiment reported data June 17 showing an unexpectedly large number of blips within their detector. “We observe an excess … and we don’t know what it is,” said physicist Evan Shockley of the University...