Scientists had two options to explain Betelgeuse’s weird behavior in late 2019. They chose both.
The Coronavirus Pandemic
Experts weigh in on the U.S. CDC’s recommendation fully vaccinated individuals removing masks indoors and what it means for the pandemic’s future.
From the Archives
New ultrasound imaging reveals what goes on inside a pachyderm’s trunk while feeding. It can snort water at the rate of 24 shower heads.