Astrophysicist Janna Levin explores black hole science.
Two pilots construct and fly the first solar-powered airplane around the world.
The remains of a 13,000-year-old skeleton of a prehistoric teenager are located in an underwater cave in Mexico.
Archaeologists and divers recover remains of ships and planes that were lost in Dunkirk, France, during World War II.
A look at why some predictions fail while others succeed at forecasting the future.
Scientists around the world strive for a better understanding of the workings of the weather and climate machine known as Earth.
The 2017 hurricane season brings devastation to Houston and throughout the Caribbean.
The experience of organ donation, including patients who need transplants and families who make the choice to donate organs of deceased family members; the critical shortage of organs; research into "organs by design."
The rebuilding of the 19th-century Blenheim covered bridge; traditional artisans in China restore ancient covered bridges.
At 11,000 feet, Mount Nyiragongo in the Democratic Republic of the Congo, is one of the most active and dangerous volcanoes in the world.
Volcanologists explore Nyamuragira, one of the most active and dangerous volcanoes in the world, in the Democratic Republic of the Congo.
Scientists probe the mysteries of addiction, including how addictions work and how this social issue can be resolved.
Archival and 3D imagery of the supersonic aircraft and its structure reveals how the dream of building the airliner became reality.
Underwater archaeologists and technical divers excavate the wreckage of the B-24 Liberator bomber Tulsamerican in hopes of finding out what happened to the three airmen who went missing when the plane crashed off the coast of Croatia in 1944.
Rescue workers race against the clock to save twelve boys and their soccer coach trapped in a cave system in Thailand.
The peregrine falcon reaches high speeds to become the world's fastest animal; bird trainer Lloyd Buck attempts to get his peregrine, Moses, to go faster.
Astronauts and engineers of Apollo 8 explain the inside story of the first mission to circumnavigate the moon.