COVID-19 vaccines offer lasting protection

A 3D printed vaccine patch offers vaccination without a shot

Vaccination efforts made in the world’s poorest countries since 2001 will have prevented 20 million deaths and saved $350 billion in health-care costs by 2020, as reported in the Bulletin of the World Health Organization.

Study describes how human stem cells, made from human skin cells, can hunt down and kill human brain cancer, a critical step toward clinical trials—and real treatment.

Carolina’s Laura Mersini-Houghton shows that black holes do not exist

Scientists find likely cause for recent southeast U.S