The underlying cause of multiple sclerosis is not yet known, but Epstein-Barr virus is a possible culprit, Harvard researchers say.

Explore these NOVA resources to better understand the volcanology behind Tonga’s massive undersea eruption in January.

New evidence suggests that the larger system the Gulf Stream is part of is approaching a tipping point that could cause dramatic shifts in global weather patterns.

During a recent study, a group of magpies removed their GPS trackers, astounding their observers. But were the birds actually trying to help each other?

Two hours before asteroid 2022 EB5 entered Earth’s atmosphere, scientists knew exactly when and where the space rock would strike.

As Florida’s seagrass beds die off, manatees are starving. Can the seagrass–and the manatees–make a comeback?

In the 1700s, an enslaved man named Onesimus shared a novel way to stave off smallpox during the Boston epidemic. Here’s his little-told story, and how the Atlantic slave trade and Indigenous medicine influenced early modern science.

Excessive outdoor lighting is deadly to animals and takes a toll on human health and wellbeing, too. But when it comes to large-scale environmental problems, this one may be a relatively easy fix.

The trails through our public lands weren’t designed for wheelchairs, but new wheelchairs are designed for those trails. National Park Service accessibility specialist Quinn Brett wants parks to catch up with wheelchair technology, increasing access to American wilderness.

Archaeologists are working to understand how astronauts really use their space on the ISS—and help improve space habitats of the future.

The Event Horizon Telescope team has captured the first image of Sagittarius A*, the black hole at the center of the Milky Way.

Footprints in New Mexico’s White Sands National Park challenge scientists’ timeline of when humans first came to North America.

Exercise could be a powerful defense against Alzheimer’s disease. Three dementia researchers explain how it works.

And why it’s so hard to make blue ones.

Images of five targets include the deepest and sharpest infrared image of the distant universe to date.

How can you identify and overcome biases that hurt you financially? NOVA teamed up with Duke University’s Center for Advanced Hindsight to design the NOVA Financial Lab, a game that breaks down the behavioral science behind financial decision-making.

Mushrooms are remarkably forgiving. Here’s the science of why.

Will a Patagonian cypress in Chile prove older than California’s most elderly bristlecone pine?

Here is how oil and heat can form a durable coating.

Here’s how hot air can “fry” food.

Sixty years ago a teenager’s homemade ice cream raised a surprisingly complicated question: Can hot liquids freeze faster than cold ones?

A parasite that causes the most common form of malaria is evolving to be undetectable by current tests. Some scientists want to zero in on compounds in patients’ breath instead.

Koalas are the only non-primates with fingerprints. How is that possible—and why?

The mission is a test to see if NASA could knock an Earth-bound asteroid off its path, should we ever need to.

Scientists have cured a handful of people of HIV by piggybacking on treatments they received for blood cancer. But does that bring a widespread cure any closer?

The claustrum seems to act as a switchboard, telling different parts of the brain when to turn on and off. But what happens when the switchboard operator steps away?

Venomous lionfish are taking over the Caribbean and the Mediterranean Sea, eating everything in their paths. One solution: handbags and belts.

These are just a few of the geoglyphs in southern Peru, known as the Nazca lines, thought to be at least 2,000 years old.

NASA’s massive SLS rocket and Orion spacecraft kick off a series of missions to put humans back on the Moon.

Earth’s natural satellite could be a jumping-off point for future space exploration.

Can one infinity be bigger than another?

From the ancient origins of zero to the paradox of motion, NOVA’s teaching resources immerse students in the wonder of math.

The oldest DNA ever retrieved, preserved in sediments in northern Greenland, reveals that Arctic and temperate species once commingled in an ecosystem unlike anything that exists today.

NASA nudges an asteroid, weird things emerge from water, and scientists tackle a new epidemic.

Explore the cosmos, delve into ancient history, and follow an extreme rescue with NOVA’s most-watched documentaries released in 2022.

Students across the country are participating in NOVA's film production program to make videos about climate change solutions in their local communities.

Patterns of lines and dots associated with specific animal species in cave art may point to an early writing system.

Seawater might seem like an obvious solution to water scarcity, but it comes at a cost.

Bolster learning for middle and high school students about the myriad ways our weather is changing, how communities are being impacted, and innovative solutions.

The James Webb Space Telescope only captures infrared light, but imaging developers can convert the invisible into something both beautiful and scientifically accurate.

Here’s how a magnetic field can heat up your pans.

Check out some of NOVA’s best space documentaries available for streaming.

Use this toolkit to organize community screenings which educate the public, provide a space to discuss local impacts, and brainstorm community solutions.

As wildfires escalate in Western states, authorities are embracing once-outlawed burning practices.

Even the Romans noticed that cities are engineered to be heat islands. But that means we can do something about it.

Warming temperatures are causing extreme weather patterns across the country. But communities are pushing back with solutions old and new.

Three STEM educators share best practices for tackling climate change in the classroom through project-based learning.

Check out some of NOVA’s best nature documentaries available for streaming.

From Petra to the Amazon to ancient China, NOVA has you covered.

Engage your students with science journalism about issues in their communities with the NOVA Science Studio program!