Two main types of inflight WiFi connections are air-to-ground and satellite-based

During flights, cell phones can act like signal jammers as they search for service

When farther from cell towers, these devices expend more energy to emit more powerful signals, which can overwhelm any ground-based tower or radio telescope they fly past. Rather than protecting the flight, airplane mode conserves a cell phone's battery.

In the V2X framework, vehicles are wireless connected to each other

Vehicle-to-everything systems would also connect cars to traffic infrastructure and pedestrians, enabling safer, quicker, and more efficient road transportation. Tests have been conducted to demonstrate the viability of this technology with both WiFi-based and cellular network-based systems.

The US air traffic control system is safe but due for major technological updates

On any given day, over 3 million passengers fly on roughly 45,000 flights in the US. Flying today is safer than ever, but air traffic controllers deal with outdated technology that can interfere with pilot communication.

Space-based solar power systems may beam energy to Earth

Researchers have successfully collected power from solar panels on a plane and transmitted it to a receiver on Earth's surface, achieving a milestone for space-based energy. The proof of concept is a precursor for a satellite-based solar farm that would transmit energy 24 hours a day.

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.

SpaceX has launched thousands of its Starlink satellites into low-Earth orbit

Every launched batch of satellites contains roughly 60 of the desk-sized gadgets. The batch is released at random into an initial orbit, and it takes time for them to naturally spread out enough before operators begin unfolding their antennae.

Commercial air travel's early days: Flights were short, cold, depressurized, and generally comfortable

After World War II, airlines competed for their high-end passengers by offering cocktails, meals, and plush seats, cultivating the image of the elite "Jet Set." By the 1960s, air transport was completely changing global trade and offering big profits to companies able to ship via plane.

Scientists use ground-based radar data to detect turbulence within clouds

NCAR developed the NEXRAD Turbulence Detection Algorithm and the Graphical Turbulence Guidance system to provide forecasts up to 18 hours ahead using ground-based Doppler radar data. Software systems also utilize an automated observation and reporting package—the EDR system—found on Delta, United, and Southwest Airlines aircraft.

Deep Space Network sites enable nonstop communication with distant spacecraft

Each DSN complex has multiple large, sensitive antennas that can receive weak radio signals from far-off spacecraft and send commands back to them. Their amplifiers are cooled to just above absolute zero to reduce electronic noise.

Testing the internet speed of the US's wireless providers

The US ranked 26th in the world for mobile speeds and eigth for fixed broadband speeds during April 2022. See this ranking of mobile and fixed broadband speeds from around the world on a monthly basis.

How do 5G base stations work?

5G relies on a combination of base stations, including macrocells, small cells, and femtocells. The differences between the three are apparent in size, coverage, and cost—but, small cells in particular are key to providing the high millimeter wave frequencies 5G promises. Learn more in this three-minute video.

See a visual of the largest airlines in the US by market share

As of November 2024, Delta Airlines controlled roughly 17.8% of US airline market share, while American Airlines controlled about 17.5%, and Southwest controlled about 17.3%. Spirit Airlines, which would go on to shutter operations in 2026, controlled less than 5% of US airline industry market share at the time.

The Internet of Things connects everyday objects to the internet

The IoT enables physical devices to share data collected via sensors or specialized software, often without human intervention. Controlling the air conditioning and heating in one's home via an app, as well as receiving alerts when away from home about someone at the door, is made possible by the IoT.

Watch a livestream of Earth from the International Space Station

The feed is made possible by the SpaceTV-1 camera system, which is live over 20 hours a day. Video replays are shown during routine loss of signal communications with the inter-satellite link relaying the video data.

The 500 subsea cables that run the internet

Subsea cables carry the majority of data sent across the globe on the internet. An estimated 552 such cables—with more in development—lay on the ocean floor, their thickness similar to a garden hose, made up of optic fibers covered in copper.

Spy balloons. UFOs. What else is up there?

The appearance and downing of a Chinese surveillance balloon brought the concept of high-altitude floating aircraft into the public consciousness. While sparking a diplomatic row, it also revealed how many objects—nefarious or benign—are...

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 list of technologies that run on Linux, including those on the International Space Station

Besides the Astrobee robots and computer systems on the ISS, the security and reliability of Linux distros have led to their use by the Federal Aviation Administration, the Pentagon, the Library of Congress, and the New York Stock Exchange. Many of the operating systems found in smart devices, autonomous vehicles, and wearables also run atop the Linux kernel.

Why Japan builds airports on water

Some of Japan's roughly 100 airports are built on water—that is, engineers have created new land in bodies of water specifically to construct airports. This six-minute video explains why the country is doing so despite the higher cost of such airports.

Explore internet usage data, including how humans consume 1.2 billion years of content yearly

About half this time consists of content from social media platforms, where the average user spends about 18.5 hours weekly. An estimated $3.66T was spent on consumer goods by online shoppers in 2025, though nonconsumer goods, such as flights and hotel stays, greatly increase this estimate.

The X Games pioneered broadcast innovation with live drone coverage

In 2015, ESPN used untethered drones for the first time in US live sports—deploying them at the X Games to capture aerial footage from angles previously impossible.

Read a list of one digital nomad's favorite remote work locations

Roughly 18 million Americans travel the world while working remotely, hunting for hotels and cafes with solid Wi-Fi connections and weather. From Thailand to Greece, these digital nomads have worked all over the world in the years since remote work has become more popular.

Research suggests AI data centers may be creating microclimate heat islands

An analysis of satellite data from 2004 to 2024 showed that land surface temperatures in the areas surrounding AI data centers typically increase by an average of 2 degrees Celsius (3.6 degrees Fahrenheit) after they begin running. Across the 6,000 global data centers analyzed by the study, temperatures increased by as much as 9.1 degrees Celsius (16.4 degrees Fahrenheit).

Infographics explaining global terrorism trends

Our World in Data’s terrorism page details global trends in terrorism. Through interactive infographics, the site shows how the number of terrorist acts varies around the world and how it has changed over time. Sections investigate common definitions of terrorism, trends in global terrorism deaths, and the global distribution of terrorism. Additional segments highlight airline hijackings, public opinion, and media coverage of terrorism. Explore this website for an array of infographics on terrorism.

Infrared light is most often associated with thermal radiation and cooking food

Although extensively used in remote controls for electronics, where LED lights send signals wirelessly, infrared cameras allow for night vision and thermography—imaging of heat patterns in the body to non-invasively reveal blood flow for supplementary diagnostics. Infrared radiation also provides heat in toasters, saunas, and other technologies.

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.

Electrical grids worldwide must double their power delivery capacity by 2050 to meet surging demand from AI and electric vehicles.

Shooting stars, or meteors, are fragments of asteroids and comets that burn up as they enter Earth's atmosphere, creating streaks in the sky called meteor showers.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

After 25 people used virtual reality headsets to practice flying with virtual wings—flapping their arms—their visual cortex responded to the wings almost as if they were real arms, treating them as body parts.

Astronauts have repaired genetic damage in space using CRISPR—a molecular tool that can make precise changes to DNA and is used in single-celled organisms to attack invasive viruses.

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

The United States is one of only around two dozen countries with a fully federal system of government, in which power is divided between national and state governments.

How Amazon operates a 'flywheel' business model, a self-reinforcing cycle that drives continuous growth

Animal phobias are likely the most common type of phobias, followed by an extreme fear of heights.

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.

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.

Fast-casual restaurant Chili's is experiencing a resurgence, with its parent company recently reporting a nearly 32% increase in sales, thanks to passionate Gen Z fans on TikTok.

This site reaches millions of visitors who are tired of AI chatbots and seeking human connection. Pretend to be an AI chatbot and ask questions, provide answers, and draw for people in real time.

Fireworks-related ER visits are on the rise—in 2024, they increased by 52% as compared to the prior year.

Browse a detailed visual analysis of over 200,000 similes—comparisons that often use 'like' or 'as'—from popular fiction to see how frequently writers the same idiomatic expressions.

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

The first image of a black hole was captured by creating an Earth-sized virtual observatory from a network of eight radio telescopes.

Explore what it's like inside a patient isolation unit, used in situations such as treating a patient or suspected patient with Ebola.

Hotels in Cannes, the glamorous city on the French Riviera, hire hawks to ward off seagulls during the city's famous film festival.

The Russia-Ukraine conflict is the largest ground war in Europe since World War II in terms of casualties, forces mobilized, and displacement of civilians.

In 2009, the nation was gripped by the story of a missing young boy who was believed to be floating over Colorado in a homemade balloon, until it was revealed that he was at home the whole time.

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.

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

A small portion of The Winstons' 'Amen, Brother,' an obscure '60s gospel record, is the basis for thousands of hip-hop tracks, making it one of the most sampled records ever that's informally known as 'the Amen break.'