Five surprising things your GPS can do

GPS satellites are programmed to account for their faster passage of time in space

The Global Positioning System relies on signals from satellites to calculate locations on Earth by measuring time and distance. However, their orbits, being farther from Earth's center, cause them to experience less gravitational time dilation. These systems would be off by 11 kilometers per day without relativistic corrections.

A primer on 5G and how it works

You see it mentioned in countless commercials, and your phone might already use it, but do you know what it is? Watch this five-minute primer on the basics of 5G.

Twenty of the coolest products from CES 2025

This roundup from Cybernews showcases standout CES 2025 innovations—from flying cars and robot dogs to VR headsets and AI-powered gadgets—showing the event’s most talked-about tech.

Nearly every major automaker now offers a hands-free driving system

The capabilities of these systems range from automatic lane changes via eye-tracking to an assistant that reminds you to check your blind spot before changing lanes yourself. Most systems still require the driver to remain alert and be prepared to take over.

Mapping the world's cell towers

Millions of cell towers around the world help connect the world's 8 billion people via cell phones and the Internet. But access to such coverage, while still expanding, is not equal. This data visualization depicts the world's many cell connections across a global map, revealing cell use hot spots and the world's many gaps in coverage.

How Google Street View generates profit

Google Maps, one of the most trusted navigation applications today, has a somewhat mysterious way of making a profit. YouTuber Phil Edwards uncovers the secret economic practices of Google Street View, while also offering a deeper understanding of how it works.

Ten things to know about your heart

Your heart does amazing things day in and day out. Its main job is crucial: It keeps oxygenated blood circulating throughout your body. Did you know that, other than your cornea, every cell in your body gets blood from your heart? You may not think...

Lidar's discoveries: 32 forts revealed by the laser tech

Lidar is a cutting-edge tool using lasers from an aircraft to map the elevations of huge swaths of land across the world. This technology has been especially effective in archaeology. It has revealed dozens of lost major historical sites concealed beneath overgrown brush and forests. From Canadian forts to Mayan settlements, check out these 32 significant finds from lidar.

View maps of seafloor topography, earthquakes, and volcanic activity

Earthquakes and volcanoes are most common at plate boundaries, where moving plates interact. Mapping the locations of these events creates outlines for the different tectonic plates on Earth, whose movements can be tracked via GPS satellites.

Ten lesser-known duties of the US president

The president of the United States is one of the most powerful positions in the world, but what exactly do they oversee? In addition to the obvious tasks of commanding the military, signing laws, and shaping national policy, this article highlights the lesser-known responsibilities of the American president. Naming national monuments and managing the White House beehive are just a few of the jobs you may be surprised to learn about.

Explore noteworthy use cases for ChatGPT

From asking the chatbot to sort grocery lists to bird-watchers using it to help identify birds, the official ChatGPT Instagram account spotlights interesting and creative use cases for the tool, especially in the days after a significant update or model has been released.

The science of optical illusions

The human brain has developed cognitive shortcuts to help us navigate in a world where our visual senses are constantly bombarded of information. But these shortcuts can also be exploited, tricking the brain into telling us something is happening when it really isn't. This short video unpacks the neuroscience behind some of the most common (but perplexing) optical illusions.

Five charts that changed the world

Data visualization helps us understand the world, providing a powerful way to communicate complicated information in a quick and efficient way. There are many different ways to create graphs, and these five examples—the pie chart, geographic dot...

An overview of 12 fundamental types of algorithms and the uses for each

These include search algorithms to quickly process and find important information, cryptographic algorithms to secure communications, randomized algorithms—such as Monte Carlo simulations for estimating probabilities of outcomes—and greedy algorithms, which make optimal choices based on available data in a step-by-step fashion, as seen in navigation apps.

A global list of every space exploration mission

Learn how and why we explore our solar system and beyond with space exploration missions, and find out how you can get involved.

Explore fun facts from the USPS, including unique post office buildings, a stamp that traveled past Pluto, and more.

Explore a worldwide ranking of smart cities

This interactive site evaluates residents' perceptions of the infrastructure and technologies available to them across 146 cities to produce a ranking based on a Smart City Index. Users can utilize the City Comparison feature to compare their city with others around the world.

Five potential ways to achieve time travel

While the author discounts the possibility of traveling to the past, it lays out five hypothetical modes of catapulting into the future: speed, gravity, suspended animation, wormholes, and light. Each has some scientific basis, but none are realistic for humans. Read the article to learn where they offer promise and where they fall short.

Stanford built a Google Maps for the Roman Empire, revealing how much it cost to travel in the ancient world

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

10 things you need to know before going to Barcelona

If you’re planning a trip to Barcelona, you might want to check out this tip sheet before you go. Barcelona-based travel writer Jamie Ditaranto shares her insider tips. From an endorsement of the public transportation system to a warning about pickpocketing, this guide is practical and doesn’t sugar coat.

Company names you may have been mispronouncing

Global company names often get Americanized or anglicized to the point where they’re unrecognizable. Here's a helpful explainer on how to say a dozen of them, from Adidas to Huawei.

When you complete a CAPTCHA on a website to prove you are human, you may be unknowingly training algorithms for self-driving cars, whose systems require training data to help identify crosswalks, bicycles, and other outdoor objects.

Fascinating 3D animation shows how Romans built roads

Highly efficient engineering and materials production allowed Roman administrators to lay down nearly 50,000 miles of roads across the ancient empire. These roads were built so effectively that many are still around today. Watch this quick 3-minute video to see how they did it.

Five of the strangest cemeteries in the world

Since forever ago, people have been burying the dead in odd ways that are still practiced today. Here's a roundup of some of the strangest burial spots in the world.

Radio waves are used in broadcasting, weather radar, telecommunications, and GPS

Its ability to bend around obstacles and reflect off the ionosphere—an electrified layer of Earth's upper atmosphere—allows this type of light to travel long distances without damaging living things due to its low energy. MRI scanners, WiFi, and Bluetooth technologies are also applications of this form of light.

Track Santa and his industrious elves

Starting in December, you can follow along with Santa’s trek across the globe. Spend time on the map, play games, and even translate your holiday messages into other languages.

Mapping the world records held by each US state

What world record does your state hold? Check out this map of the United States to see what weird accomplishment took place near you.

Why your dog’s DNA isn’t destiny

DNA tests tell people about their pet’s breed and attempt to predict things about its behavior and health. But for all that these tests might provide some interesting results, they need to be taken with caution. Here's a look at what we can and can't learn from our pets' DNA.

Track the location of the Voyager probes, currently between 13 and 15 billion miles away from Earth.

Visualize how CRISPR-Cas9—a type of immune system used by single-celled organisms to attack invasive viruses—targets and makes precise changes to a gene's DNA.

Discover the catastrophic consequences of a failure of the US electrical grid—something that is more likely than many Americans think.

The history of many kitchen appliances involves unexpected discoveries and applications, including wartime radar turned hamster defroster and replacing an 'ice king' with heat-stealing boxes.

Learn how your body is, scientifically, like a firework with its own slow, controlled burn.

See the 25 of the best photos of auroras from around the world.

Explore the history, structure, and species of Australia's Great Barrier Reef with this interactive journey narrated by Sir David Attenborough.

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

Netflix profits when you're not watching, and its movies are designed that way—read a detail-rich critical essay exposing lesser-known Netflix takes

According to the physics of black holes, our 4D reality may be a hologram—a projection of information coded on a 2D surface on the edge of the universe.

Power lines are dotted with large, brightly colored balls to improve the visibility of these thin wires to helicopters and small planes and help prevent potential crashes.

In 2025, four executives from large tech companies were given positions in the US Army Reserves—including Palantir Chief Technology Officer Shyam Sankar, which reinforced Palantir's ties with the US military and its role as a leading defense partner.

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

In 2019, a laptop loaded with six of the worst malware in history and described as 'an exhibit of historical weaponry' sold for $1.3M.

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by more than 1.5 million Muslims each year.

Hear 50 years of iconic hip-hop samples, the genre's foundational looped tracks

Telehealth demand for GLP-1s for weight loss is booming as consumers seek easier access.

A pickleball's loud 'pop' sound can reach 120 decibels, which is equivalent to a hammer hitting a nail

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

A 2019 Facebook event called on attendees to "Storm Area 51, They Can't Stop All of Us," resulting in countless memes, the creation of a music festival, and eventually the arrests of those who did try to approach the area.

Iran's Revolutionary Guard Corps is independent of Iran's regular army and is one of the most powerful and influential military-political organizations in the Middle East.