Two women enrolled in a long-running study of the factors that affect Alzheimer's take a test in which they have to memorize shapes and draw them.

Any investigator that doesn't understand how communities of color have been unfairly treated when it comes to research is doing themselves a disservice, says Gina Green Harris, director of Milwaukee Outreach.

Depression, anxiety, and stress can have an effect on a person's memory that mirrors signs of Alzheimer's.

Follow three women at risk of developing Alzheimer’s as they join a groundbreaking study to try to prevent the disease – sharing their ups and downs, anxiously watching for symptoms, and hoping they can make a difference.

Russia's invasion of Ukraine brings "unprecedented" threats to nuclear power plant safety, a nuclear researcher told NOVA.

Typical amputation processes don't take into account our ability to sense the world around us. Now, a team of researchers and doctors is working to address this problem.

Scientists solve a mammal poop mystery: Why do wombats have cube-shaped feces?

Of the over 100,000 people on the waitlist for an organ in the United States, 17 die every day. Now, the first pig-to-human heart transplant reveals some of the challenges of xenotransplantation.

"If we think about bionic limbs as more of a therapy, as treatment," a bioethicist told NOVA, "then we can start to take away some of the disparate access to artificial limbs that are very technologically advanced."

Sir David Attenborough investigates with an archaeologist and paleoanthropologist how Neanderthals thrived 200,000 years ago in what is now Great Britain.

In 2005, filmmaker Jason DaSilva was diagnosed with primary progressive multiple sclerosis, a rare type of MS that has no known cure and inflicts progressively debilitating symptoms. In this moving personal film, DaSilva looks back on the challenges he’s faced, delves into the science behind MS, and investigates the potential risk factors that may–or may not–have contributed to his rare diagnosis.

In 2005, filmmaker Jason DaSilva was diagnosed with primary progressive multiple sclerosis, a rare type of MS that has no known cure and inflicts progressively debilitating symptoms. In this moving personal film, DaSilva looks back on the challenges he’s faced, delves into the science behind MS, and investigates the potential risk factors that may–or may not–have contributed to his rare diagnosis.

Climbers Hugh Herr and Jeff Batzer recount an experience that led to them needing limb amputations.

Follow the dramatic personal journey of Hugh Herr, a biophysicist working to create brain-controlled robotic limbs. At age 17, Herr’s legs were amputated after a climbing accident. Frustrated by the crude prosthetic limbs he was given, Herr set out to remedy their design, leading him to a career as an inventor of innovative prosthetic devices.

Remains—particularly teeth—reveal that two species of mammoth once lived in what is now Southern England.

5G is a leap forward in wireless technology, providing data speeds up to 100 times faster than 4G. So why is this seemingly revolutionary tech raising concern in the aviation industry?

Sir David Attenborough investigates a unique site in southern England where amateur fossil hunters uncovered giant mammoth bones and evidence of Neanderthals. A team of paleontologists and archaeologists soon discover that the site preserves rare evidence of the extinct beasts and early human inhabitants of Britain dating to over 200,000 years ago.

Managing money is hard! Even when you know what you should do, it can be hard to actually do it. In NOVA’s Financial Lab, students practice strategies for making financial decisions by taking care of a pet while learning how to overcome common behavioral biases.

The chemicals in rhinoceros feces help the animals communicate with one another. But to scientists and police, rhino scat tells a different story.

Scott Burnett is “Scatman”—an Australian ecologist on the trail of the secrets of poop. By identifying and analyzing animal scat for DNA and hormones, he discovers essential details of their behavior, how they fit in the ecosystem, and even how to protect them.