Curiosity NOW

Tornadoes are violent, rotating columns of air that can level buildings, their unpredictability makes them even more destructive; a look at how tornadoes form and if they can be stopped.

When water unleashes its rage upon the planet, it becomes the ultimate bringer of death; whether it's from rain washing over the ground, rivers bursting their banks, or failed efforts to stem the flow, flooding is as inevitable as it is unstoppable.

Bridges and tunnels revolutionized transportation-but when they fail, tragedy follows. This episode explores the world's worst collapses and fires, including a tunnel blaze in the Alps so intense it fused 20 cars together. While bridge failures send vehicles plummeting into water or ground below, tunnel fires turn confined spaces into infernos. Why do these disasters happen, and what can be done t

Hurricanes, typhoons and cyclones are all the same thing with different names, but what they also have in common is their destructive power.

Colonel Thomas Rose is one of more than 1000 officers held in the notorious Libby Prison of Richmond, Va., known for its stark white walls, numbing conditions and rats.

Pauline Cushman is a Union war widow, a stage actress and a spy.

The frontlines of the Civil War lie hundreds of miles from Vermont, but Confederate Bennett Young plans to bring the war to the North; he leads a group of raiders into the town of St. Albans to rob its banks and burn its buildings.

Enslaved aboard the Confederate ship the CSS Planter, Robert Smalls has learned the skills of a naval captain.

Turnage was born a slave; he has made multiple escape attempts, and has been brutally beaten because of them.

Dr. John Doy is a guide on the Underground Railroad attempting to lead a group of men, women, and children to safety in Canada.

Colonel Thomas Rose is one of more than 1000 officers held in the notorious Libby Prison of Richmond, Va., known for its stark white walls, numbing conditions and rats.

Pauline Cushman is a Union war widow, a stage actress and a spy.

The frontlines of the Civil War lie hundreds of miles from Vermont, but Confederate Bennett Young plans to bring the war to the North; he leads a group of raiders into the town of St. Albans to rob its banks and burn its buildings.

Enslaved aboard the Confederate ship the CSS Planter, Robert Smalls has learned the skills of a naval captain.

Turnage was born a slave; he has made multiple escape attempts, and has been brutally beaten because of them.

Dr. John Doy is a guide on the Underground Railroad attempting to lead a group of men, women, and children to safety in Canada.

Tennis legend, French Open, and Grand Slam winner Roger Federer and the world's most successful woman in Indy car racing, Danica Patrick, share their stories on becoming the best in the world.

Julia Roberts relives her journey to becoming an Oscar-winning actress and Wladimir Klitschko shares how he became an Olympic gold medalist and record-breaking world heavyweight boxing champion.

The world's best field hockey goalkeeper and Olympic gold medalist, Maddie Hinch, and the world's greatest living explorer, Ranulph Fiennes, share their record-breaking journeys.

Bear Grylls shares his story of perseverance and how he became "the world's best known survival expert," while Ursula Burns reflects on her journey to becoming the first Black woman CEO of a Fortune 500 company.

Inventor and most cited engineer in history Robert Langer and recipient of the Nobel Prize for chemistry, Frances Arnold, reflect on their award-winning careers in science.

Award-winning actress and producer Courteney Cox of "Friends" recounts how she became a TV star and Channing Tatum reflects on how he went from a struggling student to a recognized Hollywood actor.

The "Undisputed King of Magic" Steven Frayne AKA Dynamo and Olympic gold medalist hockey captain Kate Richardson-Walsh share their insights on success.

Former president of South Africa and Nobel Peace Prize winner F.W. de Klerk and first Black woman member of the British Government and pioneering British diplomat Valerie Amos share their life lessons.

Kelly Holmes reflects on how she became a double Olympic gold medalist and Tim Peake shares his journey from test pilot to the UK's first European Space Agency astronaut to stay on the International Space Station.

Sabrina Cohen-Hatton, the most senior ranking firefighter in the UK, and Mark Ormrod, triple amputee and four-time Invictus Games gold medalist, share their incredible stories of resilience.

Tennis legend, French Open, and Grand Slam winner Roger Federer and the world's most successful woman in Indy car racing, Danica Patrick, share their stories on becoming the best in the world.

Julia Roberts relives her journey to becoming an Oscar-winning actress and Wladimir Klitschko shares how he became an Olympic gold medalist and record-breaking world heavyweight boxing champion.

The world's best field hockey goalkeeper and Olympic gold medalist, Maddie Hinch, and the world's greatest living explorer, Ranulph Fiennes, share their record-breaking journeys.

Bear Grylls shares his story of perseverance and how he became "the world's best known survival expert," while Ursula Burns reflects on her journey to becoming the first Black woman CEO of a Fortune 500 company.

Inventor and most cited engineer in history Robert Langer and recipient of the Nobel Prize for chemistry, Frances Arnold, reflect on their award-winning careers in science.

Award-winning actress and producer Courteney Cox of "Friends" recounts how she became a TV star and Channing Tatum reflects on how he went from a struggling student to a recognized Hollywood actor.

The "Undisputed King of Magic" Steven Frayne AKA Dynamo and Olympic gold medalist hockey captain Kate Richardson-Walsh share their insights on success.

Former president of South Africa and Nobel Peace Prize winner F.W. de Klerk and first Black woman member of the British Government and pioneering British diplomat Valerie Amos share their life lessons.

Kelly Holmes reflects on how she became a double Olympic gold medalist and Tim Peake shares his journey from test pilot to the UK's first European Space Agency astronaut to stay on the International Space Station.

Sabrina Cohen-Hatton, the most senior ranking firefighter in the UK, and Mark Ormrod, triple amputee and four-time Invictus Games gold medalist, share their incredible stories of resilience.

Tennis legend, French Open, and Grand Slam winner Roger Federer and the world's most successful woman in Indy car racing, Danica Patrick, share their stories on becoming the best in the world.

Julia Roberts relives her journey to becoming an Oscar-winning actress and Wladimir Klitschko shares how he became an Olympic gold medalist and record-breaking world heavyweight boxing champion.

The world's best field hockey goalkeeper and Olympic gold medalist, Maddie Hinch, and the world's greatest living explorer, Ranulph Fiennes, share their record-breaking journeys.

Bear Grylls shares his story of perseverance and how he became "the world's best known survival expert," while Ursula Burns reflects on her journey to becoming the first Black woman CEO of a Fortune 500 company.

Inventor and most cited engineer in history Robert Langer and recipient of the Nobel Prize for chemistry, Frances Arnold, reflect on their award-winning careers in science.

Award-winning actress and producer Courteney Cox of "Friends" recounts how she became a TV star and Channing Tatum reflects on how he went from a struggling student to a recognized Hollywood actor.

The "Undisputed King of Magic" Steven Frayne AKA Dynamo and Olympic gold medalist hockey captain Kate Richardson-Walsh share their insights on success.

Former president of South Africa and Nobel Peace Prize winner F.W. de Klerk and first Black woman member of the British Government and pioneering British diplomat Valerie Amos share their life lessons.

Kelly Holmes reflects on how she became a double Olympic gold medalist and Tim Peake shares his journey from test pilot to the UK's first European Space Agency astronaut to stay on the International Space Station.