Anastasia Dead or Alive?

Season 23 - Episode 1

Investigate the massacre of Tsar Nicholas and his family, and evaluate whether modern science has resolved the mystery surrounding Princess ...

Venus Unveiled

Season 23 - Episode 2

Venus reveals its true face, recorded in detail for the first time by the radar spacecraft Magellan. Our next-door planetary neighbor turns ...

Hawaii Born of Fire

Season 23 - Episode 3

From their blistering beginnings as molten rock, the Hawiian islands have grown into a verdant paradise of unique lifeforms.

The Doomsday Asteroid

Season 23 - Episode 4

Is there an asteroid or comet out there with our name on it? NOVA scans the skies and the geological record on Earth, for evidence that gian...

Lightning!

Season 23 - Episode 5

Hunt for the Serial Arsonist

Season 23 - Episode 6

In the spring of 1991, a rash of suspicious store fires in Los Angeles set fire investigators on the trail of a serial arsonist. Using ingen...

Treasures of the Great Barrier Reef

Season 23 - Episode 7

Recording sights that will astonish even experienced divers, NOVA documents an extraordinary day in the life of the largest coral reef in th...

Race to Catch a Buckyball

Season 23 - Episode 8

Can Buildings Make You Sick?

Season 23 - Episode 9

A search for the causes of Sick Building Syndrome. Experts look at various problem buildings, inspecting their air conditioning, lights and ...

Terror in the Mine Fields

Season 23 - Episode 10

The Day the Earth Shook

Season 23 - Episode 11

B-29 Frozen in Time

Season 23 - Episode 12

Travel on a perilous mission to repair and refly a rare B-29 bomber stranded on a Greenland icecap for almost 50 years.Gleaming like a jewel...

Plague Fighters

Season 23 - Episode 13

War Machines of Tomorrow

Season 23 - Episode 14

Kidnapped by U.F.O.'s?

Season 23 - Episode 15

Carl Sagan and other scientists investigate claims that people have been visited or abducted by aliens.

Flood!

Season 23 - Episode 16

The Great Flood of 1993 leaves a wake of destruction across the Midwest. Can rivers ever be contained?

Dr. Spock the Baby Doc

Season 23 - Episode 17

Warriors of the Amazon

Season 23 - Episode 18

Explore the unique culture of the Yanomami, an isolated tribe living deep in the Amazonian rainforest.

Bombing of America

Season 23 - Episode 19

Bombing is on the rise across the United States. But science is fighting back. Hidden within the chaos of a crime scene lie clues that can s...