Vault lights in the sidewalks were useful ways to light the rooms down below.

When it comes to political or personal conversations, it's always good to avoid this type of superiority posturing.

It's a book club for introverts to be social without all the pressure of a regular book club.

After fires burned away the dense foliage, an ancient Australian landmark called Budj Bim is revealed in more depth.

These sweet, inspiring and silly commercials are Super Bowl stars.

The Golden Globes, BAFTA and the Oscars have all committed to a greener production and ceremony. Are these noble pursuits or just greenwashing?

Americans went to libraries more than the movies in 2019, according to a new Gallup poll.

Photographers capture landscapes, portraits, nature and more for Sony World Photography Awards.

Mark your calendar for math holidays that celebrate moles, spirals and an endless string of numbers!

Libraries are closed, but you don't have to leave the house to benefit from reading a free book during the pandemic.

These fresh food marketplaces are a cultural connecting point that sell live and dead animals, but they have been linked to increased risk of disease.

During coronavirus, many are looking to Anne Frank's diary to learn from her messages of resilience and hope.

Daniel Rueda and Anna Devís take inspiration from architecture and design and create colorful, geometric photos.

Theodore Roosevelt, the 26th U.S. president, had a menagerie that included everything from dogs and bears to rodents and a one-legged rooster.

Swarms of jellyfish are clogging water intakes at power plants around the world, and a new study explains why jellyfish populations are on the rise.

Hundreds of street artists from 30 countries descend on Bristol, England, to showcase their talents at Upfest 2017, an annual urban paint festival.

National Geographic's Travel Photographer of the Year contest winners show the power of nature, the beauty of cities and the strength of humanity.

In France, 456 hot air balloons floated in a line at the same time during the Mondial Air Ballons festival at an airbase in Chambley-Bussieres.

"The Living Forest" by photographer Robert Llewellyn and scientist Joan Maloof drops you into a forest and encourages you to really notice its life.

billy barr spent the last 40 years living alone in a cabin in Gothic, Colorado, and collecting meticulous weather data about temperatures, snowfall and more.

Studies show that we track fecal matter, potentially deadly bacteria and fungus into our homes when we wear our shoes inside.

When you think of stained teeth, you may be quick to blame coffee. But there are other foods and beverages that could be tingeing your pearly whites.

If you watched the Great American Eclipse of 2017, here's how you can tell if you hurt your eyesight in the process.

In Chile's Atacama desert, the driest place on Earth, flowers usually bloom just once every seven years. But heavy winter rains brought on a bonus bloom.

If a bat makes its way into your home accidentally, you can get it out yourself. Don't panic, grab some supplies and help it find an exit.

Humans are social eaters, but we're not the only animal in that category. Here are other creatures who would rather eat with a group instead of alone.

Access to clean, safe drinking water during natural disasters such as hurricanes or floods is critical to health and survival. Here's how to ensure your supply.

A Category 5 hurricane causes catastrophic damage. But how does such a huge storm form in the first place?

As Florida and the Southeast U.S. brace for Hurricane Irma's arrival as a Category 4 storm, several islands in the Caribbean are coping with the aftermath.

Each year during the Ocean Conservancy's International Coastal Cleanup, thousands of people remove trash from local waterways.

The truth is that crop circles are more art than alien. Still, it's fun to suspend your disbelief, if just for a second.

New England's fall foliage wasn't always so colorful. Today's gorgeous scenery is the result of one of history's deadliest hurricanes.

The eerie hue was caused by the collision of two occurrences: fires in southern Europe and winds from Hurricane Ophelia.

The 11 mushrooms and other fungi here are a far cry from the typical white-or-brown palette of criminis and portobellos.

The Natural History Museum, London, announced the finalists for its 53rd Wildlife Photographer of the Year contest.

Peatlands have the power to release huge amounts of carbon and greenhouse gases, but these mucky wetlands also help control floods and forest fires.

A spectacular scene unfolds every year in Chiang Mai, Thailand, when thousands of candle-lit paper lanterns are released into the sky and Ping River.

The Global Wildlife Conservation held their first #WildlifePhotoFail contest, where bloopers and blunders aren't just celebrated, they're rewarded.

The winners of Nikon's 43rd annual Small World Photomicrography Competition will make you wish you paid more attention in science class.

The 2017 Comedy Wildlife Photography Awards winners have been announced, and this year's crop doesn't disappoint in the humor department.

Despite years of warning, a new report says many infants in the U.S. still sleep with soft bedding, whether in a crib or their parents' bed.

A new generic option will soon offer relief for families who shell out hundreds of dollars for these epinephrine-filled devices.

New research shows that viral infections can evolve to affect men worse than women because the viruses consider women to be more valuable hosts.

If you're trying to lose weight, the time of day when you eat matters just as much as how many calories you eat, new research suggests.

The Anza-Borrego Desert State Park in California is ablaze with colorful wildflower blooms.

Americans are experiencing one of the worst allergy seasons in years. Here are the 12 worst cities out of 100 ranked by the United States for allergy sufferers.

Crown shyness is a phenomenon where tree canopies don't touch, creating stark outlines between the treetops. Here are some theories about why it happens.

The International Dark-Sky Association bestows the honor on national parks and monuments that limit light pollution to preserve the night sky.

A new study finds Hawaii is home to "super corals" that were nearly destroyed 30 years ago but have rebounded despite warmer, more acidic water.

Sabrina Gonzalez Pasterski, who built and flew her own plane at 14, just earned a Ph.D. from Harvard and she's proof of the growing power of the STEM push.