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The story of the harnessing of cold and the race to reach the lowest temperature possible
NOVA scienceNOW: Profile: Arlie Petters
A boy from a rural village in Belize grows up to become a world-class mathematician and cosmologist.
Scientists take you inside a snow slide to unlock its deadly secrets.
Balloon Race Around the World
Delve into the history and science of ballooning, and follow some of the attempts in the '90s to be the first to circumnavigate the globe.
NOVA scienceNOW: CERN
Beneath the Alps, the mother of all particle accelerators nears completion.
NOVA scienceNOW: Dark Matter
Turns out most of the universe is held together by a mysterious, invisible substance.
Astronomers investigate gamma-ray bursts, the most powerful celestial explosions since the big bang.
Decoding Nazi Secrets
Allied technologies developed at Britain's Station X helped halt the onslaught of the Third Reich and set the stage for today's computers.
Radiation experts play out a frightening terrorist scenario—exploding a bomb laden with radioactive materials.
Einstein's Big Idea
The story behind the world's most famous equation, E = mc2
Meet the young patent clerk whose ideas about light, space, and time have transformed our view of the universe.
Elegant Universe, The
Eleven dimensions, parallel universes, and a world made out of strings. It's not science fiction, it's string theory.
Fall of the Leaning Tower
An international committee of engineers and architects race to prevent the toppling of Pisa's famous monument.
Faster than Sound
Top test pilots describe the dangers, mysteries, and thrill of being the first to fly at supersonic speed.
Galileo's Battle for the Heavens
Galileo struggles to persuade church authorities of the truth behind his astonishing discoveries about the cosmos.
Ghost Particle, The
A 40-year hunt for solar neutrinos leads to a new understanding of matter itself.
Hunting the Hidden Dimension
Mysteriously beautiful fractals are shaking up the world of mathematics and deepening our understanding of nature.
A battered manuscript turns up after 1,000 years, revealing the mind of the Greek genius Archimedes.
NOVA scienceNOW: Island of Stability
Follow the decades-long quest to create the elusive element 114.
NOVA scienceNOW: Kryptos
A coded sculpture at CIA headquarters has yet to be fully broken.
Is the magnetic field protecting Earth from deadly radiation about to reverse direction or even disappear?
Newton's Dark Secrets
Sir Isaac Newton, the eccentric genius who helped define modern science, was also an obsessive alchemist.
NOVA scienceNOW: Profile: James McLurkin
James McLurkin of MIT is one of the world's leading designers of robot "swarms"—groups of robots that work together for a greater purpose.
Parallel Worlds, Parallel Lives
Join Mark Everett on his quixotic quest to understand his father Hugh, creator of a radical theory of quantum physics.
Princeton math sleuth Andrew Wiles goes undercover for eight years to solve history's most famous math problem: Fermat's Last Theorem.
Astronomers grapple with some very big questions: what is the size and shape of the universe, and how will it end?
NOVA scienceNOW: The Search for ET
Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there?
Secrets, Lies & Atomic Spies
NOVA looks back to the 1940s, when American spies passed their country's deepest scientific secrets to the Soviets.
Secrets of Easter Island
A team attempts to recreate the original islanders' success at moving and erecting giant moai statues.
Secrets of Lost Empires II: China Bridge
Two teams working from opposite sides of a turbulent river attempt to build a 12th-century Chinese bridge.
Secrets of Lost Empires II: Easter Island
How did the ancient Easter Islanders move and erect giant stone statues? Our team tests one theory.
Secrets of Lost Empires II: Medieval Siege
Two teams set out to build precise replicas of a fearsome medieval weapon—the trebuchet.
Secrets of Lost Empires II: Pharaoh's Obelisk
Experts take on the challenge of raising a 40-ton obelisk without using modern technology.
Secrets of Lost Empires II: Roman Bath
NOVA sets out to create a working Roman bath, complete with hot tubs and underfloor heating.
NOVA scienceNOW: Space Storms
Behind the dazzling display of the aurora borealis are space storms that could turn the lights off here on Earth.
Engineers solve a unique set of problems in safety, aesthetics, and cost as they build a bridge over the Mississippi River.
Is time travel anything more than sci-fi fantasy? Leading physicists ponder building a time machine.
Trillion Dollar Bet
An elegant mathematical formula attracts Wall Street's attention and spawns a multi-trillion-dollar industry.
What's Up with the Weather?
FRONTLINE and NOVA take on a complex and critical phenomenon—global warming.