Virologist Angela Rasmussen clears up details on reactivation of the coronavirus in recovered patients and a study looking at runners and bikers droplet clouds.
Are you following stay-at-home orders? In some countries, the government will use cell phone data to make sure.
Researchers are using dogs’ heightened sense of smell to build a device to sniff out the chemicals produced by cancer cells.
Buried with an ornate ostrich egg? Scientists decipher these status symbols of Bronze and Iron Age aristocrats.