100 Years Ago, Students Across the U.S. Took the First SAT. Today, Relatively Few Colleges Require the Test. Where Is It Headed?

These Butterflies Can Live 25 Times Longer Than Their Relatives. They Might Provide Insights Into Healthy Aging in Humans

Female Dolphins Seem to Remember Which Males Were Aggressive During Mating Season—and May Try to Avoid Them

Scientists May Have Discovered the Origins of the Euphrates River, Which Helped Nurture Some of the Earliest Known Civilizations

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Fish and Humans Share Surprisingly Similar Sleep Habits, Including Daytime Naps

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This Infamous ‘Death Railway’ Station, Built by Forced Labor From Prisoners of War and Civilians in World War II, Was Just Revealed in Thailand

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Scientists Identify Swaths of Coral Reefs That Might Be Able to Withstand Climate Change, Offering New Avenues for Conservation

Authorities Investigated Reports of an Illegal Excavation in Rome. Then, They Stumbled Upon an Ancient Villa Adorned With Mosaics

Two Well-Preserved Roman Busts Were Discovered Inside a Wine Vat in Israel Near the Capital City of a Roman Province

How Angry, Out-of-Work Fishermen Saved the Patriots During the American Revolution

Archaeologists Discover Evidence That a Wooden Prototype for Stonehenge May Have Aligned With the Solstice 500 Years Before the Stone Circle

A 6-Year-Old Boy Spotted Something Sticking Out of the Ground in a Field. It Turned Out to Be a Viking Sword

New Discovery That Hunter-Gatherer Children Died of Plague More Than Five Millennia Ago Sets Back the Date of the Earliest Outbreak

These Devoted Dads Across the Animal Kingdom Will Warm Your Heart This Father’s Day

Major Oak, the 1,200-Year-Old Tree with Ties to the Robin Hood Legend, Is Presumed Dead After Failing to Produce Leaves

This Photography Studio Captured the Beauty of Black Life in the South. Soon Its Archive, Once Hidden Away, Will Have a New Museum Home

A Vietnam Veteran Collected Fossils for 66 Years. One, Mislabeled 'Baby Lamprey,' Made Paleontologists Reconsider How Vertebrates Moved From Water to Land

Astronomers Discovered a 'Cosmic Fossil' in the Making—the Most Chemically Primitive Galaxy Seen Yet—by Peering Back to the Edge of Time

By Signing His Name to Massive Jars, This Enslaved Artist Defied Literacy Bans in the South. Now, His Masterpiece Is on View With a Famed Paul Revere Bowl

Researchers Find a Mathematical Pattern Used in City Planning Hidden in the Leaves of a Common Houseplant

What Natural History Objects Represent Your State? You Can Find Out in This New Exhibition of More Than 600 Specimens and Artifacts

Nearly All Plants Depend on Tiny Underground Fungi. The Microbes' Vast Global Networks Were Just Mapped for the First Time

Here's How the Obama Presidential Center Is Different from Other Presidents' Museums

In June 1775, the American Patriots Faced Off With the British at the Battle of Bunker Hill. Archaeologists Are Uncovering Evidence of the Fighting 251 Years Later

Hidden Tunnels Dating Back to Henry VIII's Reign Were Discovered at This English Boarding School, Where the King Once Lived

Scientists Discover a New Species of 'Walking' Shark in Papua New Guinea. They Suspect It's at Risk of Going Extinct

Archaeologists Unearth Hundreds of Artifacts at Fort Ticonderoga, the Site of America's First Offensive Victory of the Revolutionary War

Who Were the Couples That Posed for David Hockney's Famed Double Portraits?

For Its Birthday, the U.S. Will Give Americans of the Future a 900-Pound Time Capsule Filled With Art, Natural Treasures and a Clever Copy of the Declaration of Independence

Scientists Are Using Nanomaterials to Heal Stubborn Wounds That Resist Antibiotic Treatment

Male Bowerbirds in Australian Cities Are Turning Human Trash Into Treasure to Impress Potential Mates

This 'Practice-Changing' Gene Test Could Tell Doctors Which Patients With Breast Cancer Can Skip Chemo, Clinical Trial Suggests

To See the Magnificence and Majesty of Machu Picchu Without the Hike, Check Out These Amazing Images

Five Advances That Helped Turn a Night Out at the Movies Into the All-Enveloping Experience It Has Become

Every Generation of Teenagers Redefines Pop Culture Through Its Favorite Music, Fads, Movies and Trends

Cellphones Were Created to Untether Us. Then They Got Smart and Evolved Into an Omnipotent Appendage

Scientists Uncover New Clues About the Volcanic Origins of the Giant's Causeway, an Iconic Geologic Structure in Northern Ireland

Ants Can Get Distracted by Cookies, Chips and Other Junk Food. Here’s Why That Could Be a Problem for the Environment

See a Stunning View of the Southern Lights Dancing Across the Earth Captured by a NASA Astronaut

See the First-Ever Photographs of Cozumel’s Elusive Dwarf Fox, One of the Rarest Canids in the World

This Unsung Black Developer Unlocked the Code to Turning a Video Game Console Into a Virtual Living Room Arcade

America's 150th Birthday Celebration Was Deemed the Nation's 'Greatest Flop.' What Went Wrong With the Sesquicentennial?

The Astounding True Story of America's Comic Book Creators, From 'The Yellow Kid' to Superman to Webcomics

You Can Now See Betsy Ross’ Sewing Table in Philadelphia, Thanks to a Flag Day Donation From Her Great-Great-Great-Great Grandson

The Queen of Soap Operas Started Off By Telling Stories About the Drama She Was Missing in Her Own Life

A Museum of American Music—Headlined by Bruce Springsteen—Opened in New Jersey With Instruments, Lyrics and Clothes From Rock Stars and Pop Legends

Venus Flytraps Snap Their Traps Shut in Less Than a Second. Scientists Say They've Discovered How the Predatory Plants Are So Fast

With a Beam of Light, the New York City AIDS Memorial Honors the Nearly Forgotten Legacy of This Great American Sculptor

The 'Super' El Niño Has Arrived. Here's How It Might Affect the World's Weather and Economy

With a Few Tweaks, the Country’s Favorite Sports Went From Pastimes to Part of the Fabric of Our Culture