COVID-19 disruptions revived ancient chinampa farming in Mexico City

The ancient crops we've forgotten how to grow

Roughly half of all world calories today stem from maize, wheat, and rice. But for most of history, plants were domesticated in highly local places. This video dives into the scientists learning about crops no longer highly in use that once fueled entire civilizations in North America. Some forgotten crops include pitseed goosefoot, maygrass, and sumpweed.

The Aztec Empire explained

Tenochtitlán grew into a powerful city-state supported by innovations such as chinampa farming and its central role in the Triple Alliance. Spanish forces later exploited internal rifts to overthrow the empire, but the city’s legacy endures in modern Mexico City’s historic core.

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

The long history of an ancient Andean beer made from corn

And often chewed before brewed. From dank chicherias in small towns to gourmet big-city restaurants catering to tourists, the traditional fermented-corn beverage chicha is still being drunk throughout the Andes. Read more here.

Athletes in Mexico are reviving a 3,000-year-old sacred sport

A modern team is working to revive Juego de Pelota, an ancient Mesoamerican team sport played by the Maya, Aztecs, and neighboring cultures. Once central to ritual and community life, the game was outlawed by Spanish conquistadors in the 16th century.

Turning some invasive species into cash crops has helped control their spread

In Mexico, some companies are transforming sargassum seaweed blooms into paper, bricks, and shoes, while in Cambodia, water hyacinths are dried and woven into baskets, rugs, and other crafts. Lionfish and green crabs have been hunted for culinary dishes, with the latter also being used to make crab whiskey in New England.

The Chicano movement revived Cinco de Mayo as a symbol of resistance in the 1960s

After decades of little relevance, Chicano civil rights activists on campuses across the Southwest reclaimed the holiday in the late 1960s. Members of the movement described it as a declaration of cultural pride and self-determination

Ceren: The Maya Pompeii (sans all the bodies)

The Maya village of Ceren in El Salvador was preserved by volcanic ash from 1,400 years ago, revealing insights into ancient Maya commoners' lives. Ceren villagers had autonomy in their daily activities, and excavations reveal evidence of communal decision-making and event hints at the presence of a community sauna. Dive into more of the archaeological finds on how businesses were run, how they prepared for disaster, and more.

The canal project required the forced removal of local inhabitants

The canal displaced Panamanian communities, with towns like Gatun and Gorgona dismantled and farmlands lost, reshaping the region forever.

The coronavirus likely came from China’s wet markets

A wet market is a type of marketplace primarily selling fresh, perishable goods such as meat, fish, and produce, often in a non-supermarket environment. The term originated in Singapore during the 1970s, and the "wet" aspect refers to the wet floors resulting from the washing of stalls and the use of ice to keep food fresh. Such markets have been identified as a major source of zoonotic outbreaks, including the COVID-19 pandemic.

Side-by-side shots of once-dry California lakes now filled

In late 2022, much of California was in drought; by early 2023, after a series of downpours from atmospheric rivers, much of the state's reservoirs had been re-filled. See the dramatic difference in this series of photos.

Microforests in urban environments may help combat climate change

Areas of densely packed native trees and drought-tolerant plants within cities can pull carbon dioxide from the air, cool surrounding neighborhoods, and support local wildlife. The idea behind microforests traces back over 50 years to Japanese ecologist Dr. Akira Miyawaki, who promoted planting whole ecosystems to restore degraded land.

'The Chinatown Sting': Unraveling an international drug smuggling ring

In the late 1980s, a group of women connected through the mahjong parlors in Manhattan’s Chinatown were caught in a massive undercover drug bust. But this bust was just the beginning of an even bigger case.

We're in the middle of a decadeslong cholera pandemic

In 1961, the world's seventh recorded cholera pandemic started in South Asia, and it has continued through the decades. India and Bangladesh are at particular risk. This pandemic is driven partly by conflict, population displacement, extreme weather, and poor water infrastructure.

Mapping tourism at Machu Picchu

Only 750 people lived at Machu Picchu at its height, but today, almost ten times that number trample through its delicate plazas and agricultural terraces every day. This data visualization vividly illustrates the skyrocketing numbers of visitors to Machu Picchu over the decades, and highlights the risks of over tourism, including soil erosion and other environmental threats, and negative social and economic impacts.

The tradition of the graveyard picnic

This article from Eater shares a fresh perspective on eating amongst the dead. Writer Tiffany Leigh shares the cultural significance of picnicking in cemeteries during the Qingming Festival, also known as Tomb Sweeping Day, which is celebrated in Chinese culture. Her article explains how Qingming can be a tender and lighthearted event to remember the deceased and how that can differ from modern American attitudes toward death and cemeteries.

Before Chipotle, San Francisco was the epicenter of American burrito obsession

More than just something to eat, burritos were akin to a Bay Area religion in the early 1990s, inspiring performance art, comedy shows, music, philosophizing, and more.

China has a ‘ghost town of abandoned mansions’

This video shows how China’s property bubble deflated as new-home sales collapsed and more than 50 developers defaulted. In Shenyang, an abandoned “ghost town” reveals the fallout of a boom built on debt and overbuilding that could no longer be sustained.

Policies related to the coronavirus pandemic inadvertently increased illegal border crossings

A pandemic-era public health measure called Title 42—intended to seal the border by expelling migrants immediately—backfired. Because expulsions carried no legal consequences, migrants simply tried again, driving illegal crossings to a peak of over 370,000 people in December 2023.

Sinaloan sushi is a Mexican take on the Japanese classic

Sushi became popular in Mexico in the early 20th century, thanks to Japanese immigrants who settled in Sinaloa, a Mexican state that runs along the Pacific Ocean. The region’s modern-day sushi blends both cultural traditions, evident in items like the Mar y Tierra roll, which includes carne asada and shrimp.

How chaos helps explain why small market corrections can produce major economic instability

Oxford University complex systems professor Doyne Farmer discusses how predictions from many economic models are overly weighted toward simple relationships, such as supply and demand, and external shocks, such as the COVID-19 pandemic. However, real-world macroeconomic systems involve public and private actors interacting, producing feedback loops and cascading effects that resemble the oscillatory behavior seen in chaotic systems.

The pandemic forged new FIRE followers

The FIRE movement gained steam during the pandemic, when some were inspired to clean financial house amid an environment of global economic uncertainty.

Delivery apps have realigned the restaurant industry

As delivery apps like Grubhub and DoorDash became popularity, traditional dine-in restaurants have adapted to become more accommodating. In this thinkpiece for the Atlantic, Ellen Cushing argues that it's both changed the kind of food being made and realigned our very notion of a restaurant. (Some readers may experience a paywall.)

The Chumash manufactured shell beads for thousands of years, eventually as money

The practice was unique to the Chumash among North American Indians. Some researchers have made the case theirs was the first use of money on the continent.

The fish doorbell letting people help spawning fish

Utrecht, a city in central Netherlands, has implemented an innovative "fish doorbell" system at a river lock to assist migrating fish during their spring journey to spawning areas. This unique setup allows online viewers to participate in helping fish navigate through the locks. An underwater camera is installed at the Weerdsluis lock, streaming live video to a dedicated website, where viewers may press a digital button when they see a fish.

The Ancient Chinese harnessed solar power for heating and cooling 6,000 years ago

Neolithic Chinese homes faced south for winter sun warmth, while overhangs shielded them from high summer sun. These efforts also influenced urban planning, with cities aligning streets east-west for optimal solar exposure.

The use of fungi to detoxify land and water—a process known as mycoremediation—has been used to clean up natural resources affected by the 2025 California wildfires.

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.

Volcanic activity may have triggered the Black Death by spewing gases that led to crop failures in Europe, thus forcing the import of grain ships with plague-infested fleas.

In 1963, a basement renovation in Turkey revealed a passageway to a hidden, multilevel underground city that once housed as many as 20,000 people

Fish populations in the Great Barrier Reef have increased after installing waterproof speakers on the ocean floor that played recordings of sounds from healthy coral reefs.

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

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

Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

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

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

Cultural norms about how to handle the bodies of loved ones in communities in West Africa have hampered Ebola responses.

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.

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.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

NBA superstar Victor Wembanyama spent the 2025 summer training with monks in central China to enhance his body and mind.

Jimmy Carter signed a 1978 bill that legalized home brewing, a move credited with kick-starting the craft beer industry.

Up to a million Girl Scouts sell about 200 million cookie boxes every spring, generating $800 million, largely because refusing a child is frowned upon

Exploring the Larry Bird punch that almost changed March Madness

Some researchers have labeled nomophobia, the fear of being without your phone, as 'the phobia of the 21st century.'

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

A researcher recently discovered an interview from 1967 between groundbreaking journalist Joan Didion and the Grateful Dead, years before the band became an institution.

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.

Objects can be 3D printed with light by projecting 2D computerized tomography (CT) scans onto rotating cylinders of resin, which solidify upon exposure.