WHYY-DT

The dry, red planet Mars was once a blue water world studded with active volcanoes and may have even had the ingredients to support life.

Jupiter's gravitational force made it a wrecking ball as it barreled through the early solar system, but it also helped shape life on Earth as it brought comets laden with water and possibly the asteroid that put an end to the dinosaurs.

Performance footage of folk group Peter, Paul and Mary.

Francine must overcome her fear of public speaking so she can voice her concern about pollution at the Earth Day rally; Ladonna dreams of skiing and sledding.

Delivery Debbie goes undercover to stop a group of villains; when Olympia finds out Dr. O is leaving, she struggles to throw a great goodbye party.

An illustrator demonstrates different ways to imagine the same concept; Albie has trouble drawing the villain in her "Super Albie" story.

It's an exciting day for Lily and her family when they move into their new house.

Lyla and Luke clean Stu without a bath; Lyla and Ale find a way to protect the callaloo plants from stink bugs.

Carl and his friends clean up the Fuzzytown Park; Carl accidentally breaks the birthday present Sheldon planned to give his mom.

Daniel and his family explore nature, watching a red bird build a nest; Daniel, O the Owl and Uncle X take a nature walk through the forest.

Phoebe, Jay and Lupe practice their fire safety plan when the fire inspector visits; Phoebe and Jay buy juice from Mr. Aguilar.

Elmo, Grover, and all their friends help Charlie build a Little Library for her Mitzvah Day project for her synagogue. Helping neighbors share books is Charlie's way of making the world a kinder place.

Ellie's so excited to be going home to Jamaica that the Wombats and Mr. E start to worry whether she'll come back; Buckley comes over for a playdate with Zadie.

Donkey and Grampy try to make an old family recipe; Donkey and Panda are excited to try a new cereal.

It's Recycling Day, so Rosie becomes a recycling kid, but she accidentally recycles Crystal's art project; when Rosie and Javi find a monarch butterfly in the backyard, they try to figure out what it needs so it can flutter again.

Elinor and her friends are inspired to build a nest; Elinor and her friends learn that it is good to eat different types of foods.

Alma tells all her friends that Howard is moving; Alma wonders if she should buy new materials for her recycled art project.

Molly and Vera think about teaching more tourists in Qyah about wildfire prevention; Molly can't wait to hunt for seagull eggs.

Xavier is afraid he will be unable to perform his comedy show after he hurts his wrist, but Mark Twain shows him that laughter can make hard things easier; Abigail Adams helps Yadina realize that a missing color will not ruin her painting.

Exploring the vast wildlife of the Galápagos Islands; coffee made from volcanic soil; local ceviche made from an endemic species of the islands.

Shrimp po' boys; king cakes; chicken sauce piquant.

Lydia learns that a former patient is in the care of a herbal doctor and wants to win them back.

A Hassan el Glaoui tempera painting circa 1970; Line Vautrin Talosel mirror; a diamond horseshoe brooch circa 1900.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

Set in Antarctica's Dry Valleys, Antarctica's glacial and icy ecosystems reveal how frozen landscapes can sustain surprising life forms.

Tiger expert Valmik Thapar uncovers 50 years of archival footage chronicling the tiger clan of northwestern India's Ranthambore National Park.

Scientists try to figure out how to predict weather events called "rain bombs" that sink ships and down planes.

Isabella Tree and her husband, Charlie Burrell, strive to breathe new life into the ailing Knepp estate. They reintroduce native ponies, deer, pigs and other wildlife, allowing nature to thrive.

Steve Adubato holds four-person round table discussions that explore issues facing society.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.

NASA's Cassini probe explores Saturn's icy rings and moons, capturing ring-moon interactions and revealing ingredients for life on the moon Enceladus.

Exploring humanity's timeless questions -- who we are, why we are here and where we are headed -- with leading thinkers Richard Rohr, A.R. Bernard, Rachel Timoner, Kwame Anthony Appiah and Kelly Brown Douglas; host Ray Suarez.

André Rieu and his Johann Strauss Orchestra perform in Maastricht, Netherlands; music includes Verdi's Triumphal March of Aida, "Dancing on the Stars," a sing-along of "Sweet Caroline" and "The Blue Danube.".

Danny's rave review of Jay's lemonade recipe inspires Albie to create her own; Huggy and Albie want to build the biggest cup tower.

Dot and Al announce the Hunters are spending Christmas in Nigeria, and Corky wonders if she can have a fun Christmas without snow.

Lyla struggles to sleep and tries to figure out what is wrong with her sleep routine; Lyla tries to do her own hairstyle.

Nico is tired of being mistaken for her twin sister; Carl is upset when Nico breaks the Lint Dinosaur Monday rules and makes a Lint Monster instead.

Mom Tiger shows Daniel the strawberry patch; crayons are made at the factory.

Phoebe and Jay accidentally get paint on the mail and have to decode addresses; Phoebe and Jay find their parents' box of memories.

Cinderella needs to tell time for the ball, but her clock is broken, so Nina, Abby and Rudy wonder what tool they can use to fix it.

Malik and Zadie can't agree on how tidy to keep their bedroom; Zeke's friends build houses for the fairies who have moved in.

Donkey and Panda make up a game while waiting for Gameshow Gator's new game; Donkey and Panda disagree on which toys are fun.

Rosie, Crystal and Iggy try to recreate Mom and Papá's beach anniversary tradition at home; it's Chiles en Nogada Day, but when Papá loses the recipe, it's up to Rosie to figure out who else might have it.

Elinor finds a peculiar-looking owl while visiting her grandparents in the desert; Olive and her friends investigate why a tree has fallen over in the forest.

Alma and Rafia want to keep a bird's nest safe; Alma and her friends look for a litterbug.

Alaska state basketball champion Kamaka Hepa offers Molly and her basketball team pointers on the court.

David Suzuki explains to Xavier that by taking care of the earth, we take care of ourselves; Esther Martinez explains to Xavier and Yadina about how stories can connect people to their family histories.

Michigan's Upper Peninsula was once the center of the mining world during the copper boom of the late 1800s; discovering the roots of a "Yooper"; regional recipes include planked-style Lake Superior whitefish.

Double-crust chicken pot pie; creamy peanut butter; cowboy cookies.

Gabriel teams up with Ruby to take part in an outreach program to a tea plantation center, but Ruby may have ulterior motives in making the trip; Lydia tries to help a patient who has been victim of domestic abuse.

A W.W. Denslow-inscribed "The Wonderful Wizard of Oz"; a Mercury space capsule wind tunnel model; black opal ring.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

Recital performances at the Field Concert Hall.

When the Head Nose of a famous fragrance dynasty is found dead in his study, Sister Boniface must sniff out a killer.

Father Brown has a lot on his plate when a food fair comes to Kembleford, bringing murder with it.

Gently and Bacchus are thrown into the new world of pop and media celebrity when the body of a missing schoolgirl is discovered in a shallow grave.

Conservation efforts to protect plant and animal life at Great Smoky Mountains National Park; photography captures misty mornings in Cades Cove and vibrant scenic trails.

Twenty-four hours a day, the latest national and international stories as they break.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.

Visual interpretations of classical music set to images of nature, fantasy, historical locations, architecture and art; host Barry Bostwick.

Revisiting picturesque scenes from the series in the Yorkshire countryside.

Rick Steves celebrates the value of exploring the world as he captures the joys and rewards of travel with visits to Guatemala, Ethiopia, Palestine and Iran.

An educational journey through several of The Beatles' milestone albums and the stories that accompanied them.

Muffy wants a Dream Bouncy Castle for her party; Francine and Muffy set up their older siblings.

Agents from the Big O's office threaten to shut down Odd Squad; Oona meets Dr. O's replacement.

Jay, Albie, Huggy and the Peps want to add music to their workout but Albie and Huggy can't agree on a song; Albie learns how to highlight her friends' best qualities while taking pictures.

The Hunters learn how temperatures can affect outdoor plants and gardens.

Lyla and Everett play basketball against their moms; Lyla and Luke restore their old toy car to make it special for Stu.

Carl can't wait for the ice cream festival; Carl is upset that he has to wear a cast on his broken wrist.

Daniel and his friends play T-ball and find that Henrietta is a dance teacher and a T-ball coach.

Phoebe and Jay set a new record for the longest paper airplane fight; Phoebe and Jay learn how to build a stable pillow fort.

TJ is excited to meet his favorite comic book artist Bobby Manalo, and to make him feel welcomed on Sesame Street, TJ makes him a comic book gift with the help of Tamir; while working on it, Tamir also learns to say a few words in Tagalog.

Zadie creates a Treeborhood photo album to trace the growth of their beloved tree from little to very big; Mr. E judges a sculpture contest.

Donkey feels jealous when Grampy gives Panda a piano lesson; Duck Duck is disappointed when she misses her favorite band.

Rosie, Javi and Papa use different kinds of transportation to bring Tia her lucky spoon before her train leaves; Crystal's disc gets stuck in a tree.

Martin and Chris observe wild cats and dogs interacting with each other on the African savanna.

Molly spends the night at Tooey's house when a blizzard strikes Qyah; Molly loses her fish charm bracelet in an ice hole.

Watching Julia Child follow a step-by-step recipe encourages Xavier to do the same to build a model airplane; Neil Armstrong inspires Yadina to try new things.

The centuries-long struggle to control the strategic Gulf region of Pensacola, Fla.; cooking local favorites over an open hearth; recipes include pan-seared Pensacola red snapper and Spanish-style paella.

Monterey Bay cioppino; can openers; how to make the ultimate shrimp Mozambique.

Sister Boniface and the gang are horrified to discover the hallmarks of a ritualistic human sacrifice in the woods, supposedly acted out by a coven of witches.

Items reflect 250 years of American art, artifacts, crafts and collectibles; finds include a flag quilt circa 1880, a Tiffany Studios turtleback glass shade circa 1915 and an 1884 Edison light bulb.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

A detailed look into news stories from around the world from the BBC news desk in Washington, D.C.

We're going to higher heights on this week's show as we explore the mission of Angel Flight East. Two area museums take the spotlight. The Mutter Museum and Historical Medical Library highlight the 5th anniversary of the onset of COVID-19 with its new exhibit, Trusted Messengers. The Edelman Fossil Park and Museum officially opens. See how the Brooklyn Robot Foundry is helping students build criti

A panel of journalists provides reporting and analysis of the major stories emanating from the United States capital.

Margaret Hoover leads interviews and debates.

Exploring the layered sounds of Istanbul where empires met from European classical music to modern jazz.

Jazz and blues musicians from around the globe gather to celebrate the power of music; host Jeremy Irons.

We're going to higher heights on this week's show as we explore the mission of Angel Flight East. Two area museums take the spotlight. The Mutter Museum and Historical Medical Library highlight the 5th anniversary of the onset of COVID-19 with its new exhibit, Trusted Messengers. The Edelman Fossil Park and Museum officially opens. See how the Brooklyn Robot Foundry is helping students build criti

Twenty-four hours a day, the latest national and international stories as they break.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.

Behind the scenes of the new Masterpiece series inspired by The Forsyte Saga novels about a wealthy stockbroking Victorian-era family.

Celebrating Europe's art and creative geniuses, from Leonardo Da Vinci to Vincent van Gogh; Florence's bold "rebirth" after Europe's medieval struggles; impressionist works of the late 1800s.

An aerial view of southern Italy, beginning in Rome, and continuing along the rugged coastline to Reggio Calabria, then back to Rome.

Rick Steves celebrates the value of exploring the world as he captures the joys and rewards of travel with visits to Guatemala, Ethiopia, Palestine and Iran.

How pulleys work; a rainy story in the Neighborhood of Make-Believe.

Arthur tries to help Prunella with her pack rat habits; Binky finds out his real name.

On their annual laundry day, the Kratt brothers disagree on whether blue oceans or green forests are better; Aviva demonstrates how oceans and forests work together.

The Hunters try to help an injured bird so it can join its friends migrating south for the winter.

Celebrating picnics and barbecue with Chris Fennimore and the America's Home Cooking team; recipes include horseradish potato salad, baked beans, apple hand pies and more summer favorites.

Learning the art of making pizza at home at King Arthur Baking Company in Vermont; glazed crullers at Lou's Restaurant; rowing with Olympic gold medalist and Dartmouth College head coach Wyatt Allen.

The tiny railroad town of Goffs in the eastern Mojave Desert; Amboy; the only piece of Route 66 that runs through a military installation; Elmer's Bottle Tree Ranch.

We're going to higher heights on this week's show as we explore the mission of Angel Flight East. Two area museums take the spotlight. The Mutter Museum and Historical Medical Library highlight the 5th anniversary of the onset of COVID-19 with its new exhibit, Trusted Messengers. The Edelman Fossil Park and Museum officially opens. See how the Brooklyn Robot Foundry is helping students build criti

Sampling coffee and food from Philadelphia and Naples, Italy.

A road trip through North Alabama, from Huntsville's Rockets, museums and gardens to Muscle Shoals' music studios; Scottsboro's Unclaimed Baggage; Jesse Owens' legacy in Oakville.

Sweet and sour pork; Cantonese stir-fried black pepper beef and potatoes; hot oil-flashed garlic-ginger shrimp.

Bugoynes, a remote fishing village at the edge of Norway, where Finnish heritage and Arctic traditions thrive; reindeer herding; Arctic farming.

Visiting Gris in Tlatelolco to meet Gabriela Rojas and reflect on the neighborhood's tragic past; the rhythms and stories of danzón.

The barbecue traditions of Lockhart, Texas; cooking barbecued chuck roast; the origins of ranch dressing; preparing tomatillo and Bibb lettuce salad with tomatillo ranch.

Aubry Walch and Kale Walch recreate their grandma's recipe for Chamorro kelaguen with chicken and beef alternatives; chef K Taylor and Mariam Omari of Chef K's Revolutionary Catering make American and Kenyan styles of collard greens without meat.

Crab and shrimp stew; reviewing gyuto knives; fresh salmon burgers with Sriracha mayonnaise.

Mushroom ragu; Moka coffee; Kaiserschmarrn, a light and fluffy eggy pancake topped with jam.

Spring brings unique forageable foods like ramps, morels and fiddleheads; maintaining forest health and preserving its ecology makes foraging possible.

We're going to higher heights on this week's show as we explore the mission of Angel Flight East. Two area museums take the spotlight. The Mutter Museum and Historical Medical Library highlight the 5th anniversary of the onset of COVID-19 with its new exhibit, Trusted Messengers. The Edelman Fossil Park and Museum officially opens. See how the Brooklyn Robot Foundry is helping students build criti

Science, health, technology and environment experts and professionals address issues such as artificial intelligence, medicine and climate science.

A Walpole ranch is reimagined with an ADU for aging parents, a primary suite bump-out, smarter baths and better flow from garage to new mudroom and kitchen.

Basic tools and supplies needed to paint a room; compost versus disposal; how to run underground power from a house to a shed.

Samuel L. Jackson visits Africatown, Ala., the only African town established in America; the Diving With a Purpose divers help youths in Costa Rica discover their African heritage, by diving and identifying a sunken slave ship off their coast.

A 30-year-old skeleton washes up on the shore, and the victim has a very personal connection to Pearl; Pearl's budding romance with Mike is threatened when he identifies a suspect close to home.

When a suspect in the Gloria Hendrix case is found murdered, Cora risks everything to catch the perpetrator.

Disaster strikes at Forsyte & Co. as Soames puts an end to Irene's Parisian dreams; Louisa faces a shock eviction.

Vivid stories, archival imagery and expert voices outline how Missouri's cultural contributions helped shape the identity of America.

Singer-songwriter Jason Isbell and his band 400 Unit present songs from "Weathervanes.".

Celebrating the timeless legacy of country music with performances of classic hits by trailblazers including Willie Nelson, Johnny Cash, Kris Kristofferson, Waylon Jennings, Kenny Rogers and Dolly Parton.

Celebrating picnics and barbecue with Chris Fennimore and the America's Home Cooking team; recipes include horseradish potato salad, baked beans, apple hand pies and more summer favorites.

A look into the ingenuity, vision and talent of some of the nation's best artisans, who embody the essence of American innovation and dedication.

Fred and Mr. McFeely visit a recycling center.

Muffy wants a Dream Bouncy Castle for her party; Francine and Muffy set up their older siblings.

While doing their annual Laundry Day, the Kratt brothers disagree on what is better -- blue oceans or green forests.

Behind the scenes of the new Masterpiece series inspired by The Forsyte Saga novels about a wealthy stockbroking Victorian-era family.

An educational journey through several of The Beatles' milestone albums and the stories that accompanied them.

Actor and filmmaker Ben McKenzie unpacks his documentary "Everyone Is Lying to You for Money" and why he argues the crypto boom is built on hype, risk, and deception.

A panel of journalists provides reporting and analysis of the major stories emanating from the United States capital.

Retired federal prosecutor and civil rights attorney Beth Hopkins shares her journey as one of the first two women to live on campus at Wake Forest University.

Tiger expert Valmik Thapar uncovers 50 years of archival footage chronicling the tiger clan of northwestern India's Ranthambore National Park.

Scientists try to figure out how to predict weather events called "rain bombs" that sink ships and down planes.

Jazz and blues musicians from around the globe gather to celebrate the power of music; host Jeremy Irons.

Following Samuel L Jackson on a powerful and personal journey as he sheds new light on 400 years of human trafficking, as millions of enslaved Africans were shipped to the Americas by Western European slave traders.

Financial columnist Andrew Ross Sorkin discusses what led to "Black Tuesday.".

Experts analyze prominent international affairs topics and America's role in a shifting world.

Rick Steves cruises the Seine, visits Sainte-Chapelle and takes a vibrant tour through Paris; the Louvre Museum; Palaces of Versailles; climbing the Eiffel Tower.

Items reflect 250 years of American art, artifacts, crafts and collectibles; finds include a flag quilt circa 1880, a Tiffany Studios turtleback glass shade circa 1915 and an 1884 Edison light bulb.

An expectant father receives a life-threatening diagnosis; Trixie assists a female wrestler after a headlock goes wrong; Dr. Turner learns shocking news that implicates the future of the maternity house.

Soames commissions a country house despite Irene's distress; as Louisa faces a fresh start, Jo decides his future; Ann reveals a dark secret.

In Paris high society, Edmond meddles in the lives of those he wishes to destroy; Edmond struggles to conceal his identity from Mercedes.

A well-known photographer is found dead with a stake stuck in his heart.

The labor movement begins to shake things up; after an attack during a picnic, Axel buys himself a gun to defend his family.

A behind the scenes look at "The American Revolution" with Ken Burns, Sarah Botstein and David Schmidt to learn about the production, which took nearly a decade to complete.

An aerial view of southern Italy, beginning in Rome, and continuing along the rugged coastline to Reggio Calabria, then back to Rome.

Luther Vandross performs during a record-breaking 10 standing-room-only shows at London's Wembley Arena during his 1988-1989 world tour.

George is inspired to make a movie after meeting his hero, Hollywood director Tufton Sinclair; Binky takes the fall when George breaks the class's woodworking project.

Olympia and Otis baby-sit Baby Genius; Oona talks about when she switched bodies with a fly.

An artist teaches Albie a self-portrait exercise that gives her confidence; a drumline team shows Albie a way to make tidying up fun.

Benny becomes enamored with the mail carrier, and wonders how she delivers the mail in different weather conditions.

Lyla overcomes her fear of rock-climbing; a riddle game about everyday objects made by Black inventors.

Carl and Nico argue over who gets Arugula as their magician's assistant; Sheldon tries to help Carl become a good listener.

Jodi is nervous about her first day at a new school, but Daniel Tiger helps her feel comfortable; Daniel is nervous playing at Jodi's house, until he finds blueberries, which make him feel better.

Phoebe and Jay use a checklist to guide them through their tasks; Jay creates his first comic book and learns about the importance of page order.

Elmo tries to win a race without eating his sandwich, but learns that eating healthy food will give him energy; Cookie Monster tries to eat the sandwich for himself.

The search for Mr. Splendito tickets is on; the Wombats power-clean a bunch of bikes.

The pals want to hear the Yodel Birds sing, but they must build them a rest nest first; Donkey and Duck Duck want to cool everyone off with lemonade.

Rosie and Javi make flowerpots using repurposed items for the Robot Picnic; Rosie and Javi open a car wash to clean Iggy's ride-on car.

The kids learn the best way to slide down a hill; Ari and his friends learn the importance of oral health after Ari forgets to brush his teeth.

Alma tells on Emi when she's doing something dangerous; Alma's friends won't try Aaron and Lucas' snacks.

Molly and Stormee try to retrieve Grandpa Nat's microphone; Molly and Stormee encounter a rattlesnake.

Ravi Shankar shows Yadina that it can feel good to share her culture; Babe Didrikson Zaharias shows Yadina that practice can help her do difficult things, like making the basketball team.

The role of Texas beef in the outcome of the American Revolution; recipes fit for life on the open range, including cowboy stew, berry cobbler and cabrito.

Grilled flank steak with basil dressing; herb keepers; fresh tomato galette.

The team is on high alert after a building collapses in Barco; Ram looks after a patient whose husband is missing.

Julius Cohen yellow diamond earrings; a 1928 Gibson Granada banjo; a collection of original comic art dating back to 1937.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

A detailed look into news stories from around the world from the BBC news desk in Washington, D.C.

Costume designer Ruth E. Carter tours The Children's Museum of Indianapolis.

An Andrew Clemens sand bottle circa 1885; a 1933 Goudey baseball card set 239/240; a Joan Miró pencil on paper circa 1965.

British General Howe defeats General Washington, forcing the Americans to abandon New York; Washington's army regroups in New Jersey before attacking an outpost at Trenton.

Costume designer Ruth E. Carter tours The Children's Museum of Indianapolis.

Twenty-four hours a day, the latest national and international stories as they break.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.