Betta Fish Turns Vivid Blue When Happy Again–After Moving From Pet Shop Jar to Caring Home (WATCH)

Pink noise for sleep: what it is and whether it actually helps you rest

Researchers Train Bacteria to Consume Tumors from the Inside Out

Stanford Cures Type-1 Diabetes in Mice Without Insulin or Immune Suppression

Young Boy with Cancer Delivers 124 Gorgeous Easter Baskets to Kids in Hospitals After Fundraising $2,000

Lead Pollution Has Dropped 100-Fold in the U.S. Over the Last Century

Vancouver’s ‘Teddy Bear Doctor’ Stitches Together More Than Just Plushies, but Memories Too

Banana Breakthrough: Scientists Discover Key to Fighting Devastating Crop Disease

Florida police department deploys first-ever specially trained 'search and recovery' otter

Transcendental Meditation Found to Calm Genes Associated with Both Aging and Stress

Everyone’s Liver is Only 3 Years-old, Thus WWII Vet Becomes Oldest Organ Donor in US History at 100

Lawyer explains why everyone should do 'mandatory hospice volunteering' when they turn 18

Animals are Streaming into 400 Children’s Hospitals From San Diego Zoo’s Dedicated 24-hour Channel

New Drug Could Change Lives of Kids with Resistant Epilepsy, Patient Trials Concluded

Seniors Who Eat More Meat Are Less Likely to Develop Dementia Study Find

Tiny 28-Inch Pony Is Now thriving After Being so Sick He Couldn’t Stand

‘Call a Boomer’ Payphone Instantly Connects Youth with Seniors to Tackle Loneliness Across Generations

The ‘Miracle Berry’ Helps Chemo Patients Remove Metallic Taste So They Can Enjoy Food Again

The Armless Archer Wins Historic Gold at the Paralympics

43-year-long Study Found Coffee Was Associated with 18% Lower Risk of Dementia

Dialing ‘867-5309’ Will Now Connect You with a Professional Cancer Support Line Free of Charge

Significant Heart Disease Risk Can Be Detected from Routine Mammograms Using AI – Up to 70% Greater

Where fitness meets kindness: GoodGym is getting people moving and giving back

Gene from High Altitude Yak Protected and Repaired Myelin Sheath in Early MS Study

Waste Plastic Turned into Parkinson’s Drug Thanks to Helpful Bacteria

Doctor Adopts 4-yo Patient Who had No Family When he Arrived for Heart Surgery –And Found Homes for his 5 Siblings Too

Community Rallies to Save Poor Town’s Last Youth Center –And Succeeds with Government Grant

A.I. Could Help Doctors Spot Hard-to-Detect Signs of Breast Cancer During Routine Screenings, a Clinical Trial Suggests

Celebrating Good News of 2024

Santa's Son Steps into His Father's Boots

Women Will Have a League of Their Own... Again

Stephen Knight Named 2024 CNN Hero of the Year

From Ashes to Art: Notre Dame’s Revival

Elevate Prize Foundation to Match Donations for Top 5 CNN Heroes Up to $50K Each and Present $100K to CNN Hero of the Year

Bradley Cooper, Pedro Pascal, Oprah Winfrey, Misty Copeland, Zachary Quinto, Danai Gurira to Present Honors in the 18th Annual CNN Heroes: An All-Star Tribute

Would You Bust a Move for A Free Cup of Coffee?

Betty White Gets a Stamp

Move Over Moo Deng: Meet Scotland’s New Baby Hippo

An Athlete with Terminal Cancer Tackles an Ironman

The Runner with the Streak to Beat at the NYC Marathon

Top 5 CNN Heroes to Be Honored at the 18th Annual CNN Heroes: An All-Star Tribute Hosted by Anderson Cooper and Laura Coates

Top 5 CNN Heroes of 2024

Mozart Dropped a New Single

A Big Baby Penguin with an Even Bigger Following

A New View of Van Gogh’s ‘Starry Night’

A Woman Bikes 700 Miles to Honor Her Late Brother’s Memory

MLB All-Star Joins Backyard Wiffle Ball Game

TikTok Says This Car Dealership’s Videos Are Emmy-Worthy

Why This Olympics Marks a Big Moment for Women’s Sports

All Aboard the Googly-Eyed Train

We Can Sip Wine Because the Dinosaurs Died

America’s Best Towns to Visit

Irish Kids’ Rap Song is ‘The Spark’ You Need

A Chicago Teen Earns a Doctorate Degree

Can Bacteria be the Future of Fashion?

Why We Should Be Buzzing About the Bees

What if we Could Speak to Whales?

The Island Where Goats Outnumber People

Hundreds of Couples Are Eloping During the Eclipse

A Happy Ending for a Furry Wedding Crasher

Dapper Day, ‘Assume I Can,’ March Meowness & more

Sailing into history, surprise wedding, luck of the Irish & more

Dr. Kwane Stewart Named 2023 CNN Hero of the Year

Edie Falco and Sterling K. Brown Join Star-Studded CNN Heroes Presenter Lineup

The West Faces Snow Drought

NASA Researchers Probe Tangled Magnetospheres of Merging Neutron Stars

Goldstone’s DSS-15 Antenna and the Milky Way

A Winter Blanket Covers North Carolina

The Year's First Bright Supermoon and the Colorful Quadrantid Meteor Shower Coincide This Weekend

Hundreds of Mysterious Victorian-Era Shoes Are Washing Up on a Beach in Wales. Nobody Knows Where They Came From

U.S. Military Ends Practice of Shooting Live Animals to Train Medics to Treat Battlefield Wounds

New Fossil Analysis Suggests This Seven-Million-Year-Old Primate Walked on Two Legs, Potentially Making It the Oldest Known Human Ancestor

By Collecting Whale Breath, Researchers Detected a Deadly Virus in the Arctic for the First Time

Claude Monet Painted This Palace Overlooking Venice's Grand Canal. Now, the Legendary Mansion Is Officially for Sale

Meet the National Zoo’s Adorable 1-Month-Old Sloth Bear Cubs—the First Born There in More Than a Decade

Many Americans Will Soon Have Access to At-Home Cervical Cancer Screening Tests at No Cost

Man Arrested in Connection With Theft of Sword From Historic Joan of Arc Statue in Paris

Archaeologists Unearth Ancient War Trumpet That Once Struck Fear in the Hearts of Enemies on the Battlefield

See the Record-Breaking Bluefin Tuna the Size of a Grizzly Bear That Sold for $3.2 Million at a Tokyo Fish Market

Eating Large Amounts of Certain Preservatives Might Increase Your Risk of Developing Cancer and Type 2 Diabetes

This Mysterious Gas Cloud Spotted Around a Dead Star Is Beautiful—but Astronomers Say It Shouldn’t Be There

New Livestream Tour Takes Tourists Underneath Rome Into Never-Before-Seen ‘House of Griffins’

All Nine of Jan van Eyck's Surviving Portraits Are Coming Together for the Very First Time in History

A Cow Named Veronika Can Scratch Her Back With a Broom. Watch the Video That Scientists Are Calling the First Documented Evidence of Cattle Using Tools

Oscar Wilde's Portraits, Poems, Letters and Manuscripts Head to Auction 125 Years After His Death

This Plant Produces Plump, Fake Berries to Trick Birds Into Spreading Its Offspring Far and Wide

Astronomers Discover a Mysterious Bar-Shaped Cloud of Iron Within the Iconic Ring Nebula

This Detachable Robotic Hand Can Scurry Around and Grasp Objects Just Like Thing From the Addams Family

See How These Wristwatches Reimagine Famous Masterpieces by Claude Monet, Jackson Pollock, Edgar Degas and Paul Klee

United Nations Declares That the World Has Entered an Era of 'Global Water Bankruptcy'

Frida Kahlo's Image Is on Paintings, Posters, Socks and Sanitary Pads. How Did Fridamania Come to Dominate Popular Culture?

Why Do These Tudor-Era Portraits of Anne Boleyn and Elizabeth I Look So Strikingly Similar?

See How Alex Honnold Climbed a Dizzying 1,667-Foot-Tall Skyscraper Without Ropes

You Can Buy This 438-Year-Old Mill in Wales That Inspired a Stunning J.M.W. Turner Painting

Beach Erosion Reveals Fragments of a 136-Year-Old Shipwreck That Sank in New Jersey's 'Graveyard of the Atlantic'

Dozens of Items That Once Belonged to Nelson Mandela Can Head to Auction, South African Court Rules

Dinosaur National Monument Construction Work Turns Up New Fossils, Leading to the First Excavation at One Site in More Than a Century

'Rising Star' of a Prominent Yellowstone Wolf Pack Was Illegally Killed, Sparking a Poaching Investigation

A New App Can Match Footprints to the Dinosaurs That Made Them

Snow Drought Hits the Western United States, Worrying Experts About the Region's Water Supply

'Golden' From 'KPop Demon Hunters' Just Won K-Pop's Very First Grammy

Medieval Monks Wrote Over a Copy of an Ancient Star Catalog. Now, a Particle Accelerator Is Revealing the Long-Lost Original Text

You Can Buy Jack Kerouac's Early Draft of 'On the Road,' Which He Typed on a 121-Foot-Long Scroll

Is This Copy of a Long-Lost Northern Renaissance Portrait Actually an Original Albrecht Dürer?

Ron Teasley, Pioneering Baseball Player and One of Two Surviving Negro League Veterans, Dies at 99

See the Beauty of Corals, Beehives, Mushrooms and More in These 11 Images From the Close-Up Photographer of the Year Awards

What Is a Stoat? Learn Five Fun Facts About the Adorable Weasels Chosen as the Olympic Mascots

Hundreds of Tourists Flock to This Instagram-Famous Italian Church Every Day. Locals Are Pushing Back Against Visitors Who Seek the Perfect Photo 'at All Costs'

Physicists Create Homemade Cosmic Dust, Which Could Help Them Figure Out How the Building Blocks of Life First Reached Earth

Masked Thieves Steal Statue of British Boxer Teddy Baldock From a London Park, Leaving Only His Boots Behind

Couples Have Been Kissing Under the Lovers' Arch in Italy for Years. On Valentine's Day, It Collapsed Into the Sea

A Man Bought a $13 Camera at a Thrift Shop—and Found 70-Year-Old Film Still Inside. Do You Recognize the Faces in the Photos?

Investigators Unravel $12 Million Ticket-Fraud Scheme at the Louvre

NASA Report Reveals the Failures That Left Two Astronauts 'Stranded' on the International Space Station

See the First Known Footage of an Elusive Southern Sleeper Shark Swimming in Antarctica's Near-Freezing Waters

The Oldest State Park in America Is About to Expand

Rare and Original Watercolor Illustrations of Rudyard Kipling’s ‘The Jungle Book’ Go Up for Auction