As COVID cases flare, some schools and businesses reinstate mask mandates
A familiar pandemic-era safety measure is making a comeback as new COVID-19 variants surface and cases of the disease flare…
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As COVID cases flare, some schools and businesses reinstate mask mandates
A familiar pandemic-era safety measure is making a comeback as new COVID-19 variants surface and cases of the disease flare…
Sun unleashes powerful solar flare strong enough to cause radio blackouts on Earth
On the fifth anniversary of NASA’s launch of the Solar Dynamics Observatory, the agency released a video of the observatory’s…