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A look at how the telescope was invented, from Galileo to Edwin Hubble, and how the invention reaches the universe 13 billion light-years out.

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

In Canada, a baby turtle ventures through a forest in search of the lake where she will spend the next 50 years; a young bush baby in South Africa searches for a new home.

NASA's New Horizons probe captures the first-ever detailed images of the icy world of Pluto.

When the Soviet Union falls, Russia welcomes U.S. astronauts to their space station, Mir, but cooperation between former Cold War enemies is threatened by a run of disasters onboard.

A look at how the telescope was invented, from Galileo to Edwin Hubble, and how the invention reaches the universe 13 billion light-years out.

Fourth-generation florist, author and floral educator J Schwanke hosts this series about flower arrangement, design and instruction. Aiming to help viewers have fun with flowers, the program shows how to incorporate flowers into homes and everyday life. The series also includes tours of flower farms, greenhouses, markets, festivals and special events around the world. Some segments include a visit

Rick Steves' guidebooks, public-radio program and numerous television series have made him an essential resource for travelers wishing to explore Europe. This program finds the knowledgeable host offering globetrotters a fresh perspective on lodgings, transportation and places to visit on their journeys. One thing that hasn't changed, however, is Steves' belief that travelers should become "tempor

Exercising the joints, from the fingertips to the toes.

Strengthening the spine.

A rare Golden Bamboo Lemur is born.

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

Lyla and Luke create and act out variations on a fairy tale; Lyla, Louis and Stu track down a lost package.

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.

Prince Wednesday wishes he weren't so little; Daniel helps Dad build a playhouse.

Phoebe plans a birthday surprise for Grandma; Phoebe and Jay must tend to the bell pepper in the garden.

At the Sesame Street Jazz Festival, Elmo and Zoe learn to improvise, listen to each other play and take turns.

Zadie tries to help Zeke overcome his fear of riding a two-wheeler; the Wombats design a gift for baby fish.

Duck Duck can't figure out how to fly Harriett's new Swoop-a-rino; Donkey takes Duck Duck on an adventure.

Rosie makes a dance party island in her backyard, but the flag she puts up causes confusion; Rosie decides to be the mascot for Javi's soccer team.

In Canada, a baby turtle ventures through a forest in search of the lake where she will spend the next 50 years; a young bush baby in South Africa searches for a new home.

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.

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

Paul Revere Jr. silver tablespoons; a 1942 DC Comics promotional Superman figurine; a 1974 Sam Gilliam June 5 acrylic painting.

Seashells have inspired humans since the dawn of time and the animals which make them, and their unique place in the web of life.

Catching and tagging sharks along the Belize Barrier Reef, local fishers leverage their generational knowledge to help marine scientists and fisheries managers keep shark populations healthy for all.

Bermuda's reefs offer clues to protect the islands from the accelerating impacts of a changing climate.

At the northernmost research station in the world, scientists brave the cold and darkness to understand how some of the tiniest animals survive at a time of year when their main food source is not available.

Coverage from Washington, D.C. and London, with a regular panel of guests from across the political spectrum discussing the biggest stories of the day.

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

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

America's fight to integrate the U.S. armed forces and what that meant for Black service members and their families.

Exploring the resistance to slavery in Africa and the thousands who risked their lives as part of the Underground Railroad; the DWP divers hope to identify a preserved wreck of a ship that ferried enslaved Africans to freedom.

Exploring the politics that brought the enslavement of Africans in the West to an end; DWP divers search for "The London," a ship that re-enslaved freed Africans from St. Lucia and illegally trafficked them to England.