By early March, most Americans were aware of the strange infectious virus spreading overseas. But for many it remained remote, foreign, vague — we were still going into offices and sending children to school and living life generally as we had before.
Sad or afraid? Dogs may be able to read your face 
Science backs calls for limiting screens in schools 
Ancient Greek rings may have been forged with iron from meteorites 
AI may respond differently to bosses and subordinates 
Here’s what the first mRNA flu vaccine could mean for flu season 
Sugar may have been a key ingredient in human evolution 
Asia’s Energy Progress Is Great, But Must Pick Up Pace 
Living Longer at Age 80