Albert Einstein shattered previous ideas about time, but left many pivotal questions unanswered: Does time have a beginning? An end? Why does it move in only one direction? Is it real, or something our minds impose on reality?

Sports and science don’t mix, right? Not if you ask biomedical engineer Cynthia Bir whose career focuses on using science and technology to keep athletes safe and to help them …

When we try to get rid of a bad habit, whether it involves food or drugs or gambling, it often seems like we’re fighting ourselves inside. The reality’s not far off: Addiction twists the reward pathways of the brain to keep addicts tied to whatever gets them high.

Looking millions of light-years into deep space requires a special kind of glass telescope. Prior to the 1980s telescopes were limited in size and too heavy to follow the motion …

CRISPR: It’s the powerful gene editing technology transforming biomedical research. Fast, cheap and easy to use, it allows scientists to rewrite the DNA in just about any organism—including humans—with tests on human embryos already underway.

In the year since it became fully operational, the James Webb Space Telescope has provided breathtaking new images of the cosmos that are confirming some of scientists’ predictions while challenging …