Monthly Archives: June 2020

Why do only some get sick?

Months after a pandemic that has caused more than 500,000 deaths worldwide, scientists are still trying to answer crucial questions about the coronavirus. The main one of them: all about asymptomatic patients. People who contracted COVID-19 but did not get sick and had no symptoms have been one of the …

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Giant Star Spots Probably Causes Betelgeuse Dimming

Red Supergiant – Artist impression of Betelgeuse. Its surface is covered by large spots of stars, which reduce its brightness. During their pulsations, such stars regularly release gas into their surroundings, which condenses into dust. Credit: MPIA Graphics Department Betelgeuse, the bright star in the Orion constellation, has been fascinating …

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