NOVA | PBS

NOVA scienceNOW: Phoenix Mars Lander

Mon, 28 Jul 2008 13:00:00 EST

NASA's latest robot has already found frozen water and is looking for more signs that the Red Planet could support life.

NOVA scienceNOW: Brain Trauma

Mon, 28 Jul 2008 13:00:00 EST

Even so-called "mild" head injuries turn out to be anything but.

NOVA scienceNOW: Mammoth Mystery

Mon, 28 Jul 2008 13:00:00 EST

A pair of mammoth skeletons is found locked together by their tusks. What happened?

NOVA scienceNOW: Profile: Judah Folkman

Mon, 28 Jul 2008 13:00:00 EST

Once scorned for his ideas about how cancer grows, the late Judah Folkman is now hailed as a visionary.

NOVA scienceNOW: Dispatch: Asking Big Questions

Mon, 28 Jul 2008 13:00:00 EST

In this excerpt from a 2002 commencement address at Oberlin College, the late cancer researcher Judah Folkman describes how he learned to think outside the box when he was in high school. Listen in.

NOVA scienceNOW: Leeches

Mon, 21 Jul 2008 13:00:00 EST

A century after falling out of favor among doctors, medicinal leeches are back in hospitals, sucking away on patients' wounds.

NOVA scienceNOW: The Search for ET

Mon, 21 Jul 2008 13:00:00 EST

Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there?

NOVA scienceNOW: Stem Cells Breakthrough

Mon, 21 Jul 2008 13:00:00 EST

Three separate teams overcome a biomedical hurdle -- creating stem cells without the use of human embryos.

NOVA scienceNOW: Profile: Edith Widder

Mon, 21 Jul 2008 13:00:00 EST

Meet a marine biologist and explorer who has engineered new ways to spy on deep-sea creatures.

NOVA scienceNOW: Bird Brains

Fri, 11 Jul 2008 12:00:00 EST

Clues to the origins of human language are turning up in the brains of birds.

NOVA scienceNOW: Space Storms

Fri, 11 Jul 2008 12:00:00 EST

Behind the dazzling display of the aurora borealis are space storms that could turn the lights off here on Earth.

NOVA scienceNOW: Profile: Yoky Matsuoka

Fri, 11 Jul 2008 12:00:00 EST

A former tennis prodigy aims to create advanced prosthetic limbs controlled by human thought.

NOVA scienceNOW: Smart Bridges

Fri, 11 Jul 2008 12:00:00 EST

Can we engineer bridges that tell us what's wrong with them before it's too late?

NOVA scienceNOW: Dispatch: Bridge Doctors

Thu, 10 Jul 2008 16:00:00 EST

In this audio feature, engineer Michael Todd explains how new sensing technologies may help detect structural problems within bridges before they become dangerous.

NOVA scienceNOW: Saving Hubble

Thu, 03 Jul 2008 12:00:00 EST

Two teams of spacewalkers take on the risky mission of reviving the ailing Space Telescope.

NOVA scienceNOW: First Primates

Thu, 03 Jul 2008 12:00:00 EST

Our most distant primate ancestors, which took the stage shortly after the dinosaurs left it, were tree-dwellers the size of mice.

NOVA scienceNOW: Profile: Alfredo Quinones-Hinojosa

Thu, 03 Jul 2008 12:00:00 EST

He jumped the fence from Mexico to work as a farmhand and ended up a leading brain surgeon.

NOVA scienceNOW: Killer Microbe

Thu, 03 Jul 2008 12:00:00 EST

A relatively benign bug becomes a highly lethal pathogen, known to U.S. soldiers as Iraqibacter.

NOVA scienceNOW: Dispatch: Personal Genome Project

Fri, 27 Jun 2008 19:00:00 EST

In this video dispatch, learn why George Church of Harvard Medical School hopes to recruit 100,000 people and sequence all of their DNA.

NOVA scienceNOW: Dispatch: Falling Through the Earth

Tue, 24 Jun 2008 11:00:00 EST

Join host Neil deGrasse Tyson for a fantastic voyage through Earth's molten core -- without getting burned.

NOVA scienceNOW: Personal DNA Testing

Mon, 23 Jun 2008 11:00:00 EST

Genetic testing to assess risk factors for a handful of serious illnesses is now commercially available. But is it a good idea?

NOVA scienceNOW: Art Authentication

Mon, 23 Jun 2008 11:00:00 EST

See how clever computer algorithms can distinguish a master fake from a masterpiece.

NOVA scienceNOW: Capturing Carbon

Mon, 23 Jun 2008 11:00:00 EST

An eighth-grader's science fair project prompts her scientist father to develop a new way to pull excess carbon dioxide out of the atmosphere.

NOVA scienceNOW: Profile: Pardis Sabeti

Mon, 23 Jun 2008 11:00:00 EST

By night she's a rocker. By day, she's a Harvard geneticist tracking the evolution of the human genome.

NOVA scienceNOW: Dispatch: Hands on Hubble

Fri, 06 Jun 2008 09:00:00 EST

John Grunsfeld, an astronomer and astronaut, says that fixing the Hubble Space Telescope will be a delicate operation. Here, he explains how astronauts will have to literally let their fingers do the walking when working on the satellite -- and why the gloves of their space suits will play a major role in the mission's success.

NOVA scienceNOW: Dark Matter

Wed, 04 Jun 2008 16:00:00 EST

Turns out most of the universe is held together by a mysterious, invisible substance.

NOVA scienceNOW: Of Mice and Memory

Wed, 04 Jun 2008 16:00:00 EST

Mice placed in enriched environments can recover lost memories, giving hope to those who study Alzheimer's.

NOVA scienceNOW: Profile: Hany Farid

Wed, 04 Jun 2008 16:00:00 EST

This self-proclaimed "accidental scientist" is a digital detective inventing new ways to tell if photos have been faked.

NOVA scienceNOW: Wisdom of the Crowds

Wed, 04 Jun 2008 16:00:00 EST

Ask enough people to estimate something, and their combined guesses will get you surprisingly close to the right answer.

NOVA scienceNOW: Dispatch: Asking Big Questions

Thu, 22 May 2008 11:00:00 EST

In this excerpt from a 2002 commencement address at Oberlin College, the late cancer researcher Judah Folkman describes how he learned to think outside the box when he was in high school.

Lord of the Ants: Watch the Program

Wed, 21 May 2008 08:00:00 EST

This one-hour program is divided into five chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

A Walk to Beautiful: Watch the Program

Wed, 14 May 2008 09:00:00 EST

This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Lord of the Ants: A Conversation With E.O. Wilson

Fri, 25 Apr 2008 14:00:00 EST

Do humans have "biophilia," a built-in love for living things?

Lord of the Ants: The Boy Naturalist

Fri, 25 Apr 2008 14:00:00 EST

In this excerpt from his autobiography, 15-year-old Ed "Snake" Wilson meets his match in a swamp.

Lord of the Ants: Man of Ideas

Fri, 25 Apr 2008 14:00:00 EST

Sample high points in Wilson's remarkable half-century career through an overview of 12 of his books.

Lord of the Ants: Amazing Ants Game

Fri, 25 Apr 2008 14:00:00 EST

Match eight ants -- the trap jaw and honey pot among them -- to their unique behaviors.

NOVA scienceNOW: Dispatch: Finding Lost Memories

Thu, 24 Apr 2008 15:00:00 EST

In diseases like Alzheimer's, are forgotten memories gone for good? MIT's Eric Lander and Li-Huei Tsai discuss new experiments that are exploring whether these "lost" memories can be regained.

Car of the Future: Watch the Program

Wed, 23 Apr 2008 09:00:00 EST

This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Car of the Future: Open Content

Wed, 23 Apr 2008 09:00:00 EST

More than 200 clips of footage, including expert interviews and scenics, are available for you to make your own video.

NOVA scienceNOW: Dispatch: Finding a Fake Van Gogh

Thu, 10 Apr 2008 16:00:00 EST

Can a computer tell the difference between an original van Gogh painting and a fake? NOVA scienceNOW producer Dean Irwin describes how 21st-century technology can help museum curators catch even the most skilled forgers.

Cracking the Maya Code: Watch the Program

Wed, 09 Apr 2008 08:00:00 EST

This one-hour program is divided into five chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Car of the Future: Beyond Technology

Tue, 25 Mar 2008 16:30:00 EST

Energy expert David Greene explains why we need smart government policies to spur change in our transportation system.

Car of the Future: History's Innovative Autos

Tue, 25 Mar 2008 16:30:00 EST

For a glimpse of how future cars may be powered, start by looking at the past.

Car of the Future: Model of Efficiency

Tue, 25 Mar 2008 16:30:00 EST

In this audio slide show, Amory Lovins offers his vision of an ultra-efficient 'Hypercar.'

Cracking the Maya Code: Time Line of Decipherment

Fri, 21 Mar 2008 16:00:00 EST

Trace key discoveries in the effort to understand the Maya script.

Cracking the Maya Code: A Masterpiece Revealed

Fri, 21 Mar 2008 16:00:00 EST

Explore a 2,000-year-old mural, one of the most exciting recent discoveries of early Maya art.

Cracking the Maya Code: Decode Stela Three

Fri, 21 Mar 2008 16:00:00 EST

'Read' Maya hieroglyphs carved on an eighth-century stone monument, and hear them spoken aloud.

Cracking the Maya Code: Map of the Maya World

Fri, 21 Mar 2008 16:00:00 EST

From Chichen Itza in the north to Copan in the south, the Maya empire was vast and varied.

NOVA scienceNOW: Dispatch: Eavesdropping on E.T.

Wed, 05 Mar 2008 17:00:00 EST

Seth Shostak, senior astronomer at SETI, thinks it's just a matter of time before we find evidence of other intelligent life in the universe.

A Walk to Beautiful: The Producer's Story

Tue, 04 Mar 2008 16:00:00 EST

Mary Olive Smith describes the mix of emotions she felt in making this film.

A Walk to Beautiful: Second Chances

Tue, 04 Mar 2008 16:00:00 EST

Catherine Hamlin explains why she has dedicated her life to treating fistulas.

A Walk to Beautiful: Two Worlds

Tue, 04 Mar 2008 16:00:00 EST

In this quiz, see how women in rich and poor countries face very different realities when it comes to childbearing and maternal health.

A Walk to Beautiful: Anatomy of Childbirth

Tue, 04 Mar 2008 16:00:00 EST

Review the three stages of having a baby as well as some of the risks women face.

The Four-Winged Dinosaur: Watch the Program

Wed, 27 Feb 2008 08:00:00 EST

This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

NOVA scienceNOW: Dispatch: Global Meltdown

Thu, 21 Feb 2008 14:00:00 EST

Glaciologist Lonnie Thompson says that glaciers around the world are disappearing -- fast.

Ape Genius: Watch the Program

Wed, 20 Feb 2008 08:00:00 EST

This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Astrospies: Watch the Program

Wed, 13 Feb 2008 08:00:00 EST

This one-hour program is divided into five chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

NOVA scienceNOW: Dispatch: Doctor Q

Thu, 07 Feb 2008 12:00:00 EST

Neurosurgeon Alfredo Quinones-Hinojosa's career didn't start in a hospital -- it began in a farm field. Listen in. And watch for Dr. Q's profile on NOVA scienceNOW this summer.

The Four-Winged Dinosaur: The Producer's Story

Fri, 01 Feb 2008 16:00:00 EST

Mark Davis has been tracking the controversial case of the flying dinosaur for almost 20 years.

The Four-Winged Dinosaur: Built to Fly

Fri, 01 Feb 2008 16:00:00 EST

Compare the anatomy of the oldest known bird and its dinosaur cousins.

The Four-Winged Dinosaur: Microraptor's World

Fri, 01 Feb 2008 16:00:00 EST

See the perfectly preserved fossils of plants and animals that lived alongside feathered dinosaurs.

The Four-Winged Dinosaur: Wind Tunnel Test

Fri, 01 Feb 2008 16:00:00 EST

How did Microraptor use its second pair of wings to glide? See for yourself in this virtual experiment.

Secrets of the Parthenon: Watch the Program

Wed, 30 Jan 2008 09:00:00 EST

This one-hour program is divided into five chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Secrets of the Parthenon: A Glorious Temple

Wed, 16 Jan 2008 16:00:00 EST

Take a trip back to the fifth century B.C. with art historian Jeffrey Hurwit.

Secrets of the Parthenon: Restoring the Ruin

Wed, 16 Jan 2008 16:00:00 EST

See how architects, historians, and skilled masons are painstakingly reassembling the Parthenon.

Secrets of the Parthenon: Scenes From a Quarry

Wed, 16 Jan 2008 16:00:00 EST

Detailed line drawings reveal the tools and techniques of ancient Greek craftsmen.

Secrets of the Parthenon: The Parthenon's Many Lives

Wed, 16 Jan 2008 16:00:00 EST

Trace the building's various incarnations as a temple, church, mosque, and even an army barracks.

Absolute Zero: Watch the Program

Wed, 16 Jan 2008 09:00:00 EST

This two-hour program is divided into ten chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Absolute Zero: The Ice Trade

Wed, 16 Jan 2008 09:00:00 EST

In this game, dispatch 10 ships loaded with natural ice to Florida, Brazil, or India. Can you make a profit?

Absolute Zero: Anatomy of a Refrigerator

Wed, 16 Jan 2008 09:00:00 EST

You likely have one, but do you know how it works?

Absolute Zero: A Matter of Degrees

Wed, 16 Jan 2008 09:00:00 EST

Create your own temperature scale, then see how it compares to those of Fahrenheit and Celsius.

Absolute Zero: States of Matter

Wed, 16 Jan 2008 09:00:00 EST

Adjust temperature and pressure, and watch as gases become liquids, liquids harden into solids, and more.

Absolute Zero: How Low Can You Go?

Wed, 16 Jan 2008 09:00:00 EST

In our virtual lab, use the "cascade" process to achieve dramatically lower temperatures.

Absolute Zero: Milestones In Cold Research

Wed, 16 Jan 2008 09:00:00 EST

From Galileo's thermoscope to a recent experiment that reached less than a billionth of a degree above absolute zero

Ape Genius: What Makes Us Human?

Mon, 07 Jan 2008 12:00:00 EST

Recent brain imaging research is offering new insights.

Ape Genius: The Ape That Teaches

Mon, 07 Jan 2008 12:00:00 EST

Why is our ability to teach so critical and so complicated? MIT's Rebecca Saxe explains.

Ape Genius: Kanzi the Bonobo

Mon, 07 Jan 2008 12:00:00 EST

In this audio slide show, researcher Sue Savage-Rumbaugh describes one extraordinarily linguistic ape.

Ape Genius: Our Family Tree

Mon, 07 Jan 2008 12:00:00 EST

See (and hear) where you stand among the great apes in this audiovisual interactive.

Ape Genius: Video Extras

Mon, 07 Jan 2008 12:00:00 EST

Clever bonobo, dim-witted chimp? You decide.

Absolute Zero: Absolute Hot

Wed, 19 Dec 2007 13:00:00 EST

Is there an opposite to absolute zero?

Absolute Zero: The Conquest of Cold

Wed, 19 Dec 2007 13:00:00 EST

In the U.S., refrigeration played a key role in the rise of cities—and the final end of native cultures in the West.

Absolute Zero: A Sense of Scale

Wed, 19 Dec 2007 13:00:00 EST

Travel from absolute zero to what may be the highest temperature.

Absolute Zero: Ultracold Atoms

Wed, 19 Dec 2007 13:00:00 EST

Physicist Luis Orozco on enigmatic substances called BECs that form just above absolute zero

Missing in MiG Alley: Watch the Program

Wed, 19 Dec 2007 09:00:00 EST

This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Astrospies: Secret Astronauts

Tue, 04 Dec 2007 18:00:00 EST

Meet eight astronauts from the Manned Orbiting Laboratory program.

Astrospies: The Race Today

Tue, 04 Dec 2007 18:00:00 EST

Historian Asif Siddiqi discusses the space programs of China, India, and other new players, and their impact.

Astrospies: Space Race Time Line

Tue, 04 Dec 2007 18:00:00 EST

Examine turning points in the heated competition between the U.S. and USSR to dominate space.

Astrospies: Spy Photos

Tue, 04 Dec 2007 18:00:00 EST

A surveillance-image specialist examines photos of Iraq, North Korea, and other political hotspots.

NOVA scienceNOW: Dispatch: Leeches!

Wed, 21 Nov 2007 12:00:00 EST

Mark Siddall, a leech expert at the American Museum of Natural History, wants to change how you think about nature's most notorious blood-suckers. Listen in.

Judgment Day: Intelligent Design on Trial: Watch the Program

Thu, 15 Nov 2007 17:30:00 EST

This two-hour program is divided into 12 chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Sputnik Declassified: Watch the Program

Wed, 07 Nov 2007 09:00:00 EST

This hour-long program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Missing in MiG Alley: All About G Forces

Tue, 06 Nov 2007 13:00:00 EST

What's behind gravity forces, and how much of them can we take?

Missing in MiG Alley: Bringing Home MIAs

Tue, 06 Nov 2007 13:00:00 EST

The U.S. spends over $100 million a year to find, identify, and inter all American personnel lost since the start of WWII.

Missing in MiG Alley: MiG vs. Sabre Anatomy

Tue, 06 Nov 2007 13:00:00 EST

Compare the two fighters—one Russian, one American—whose pilots dueled to the death over "MiG Alley."

Missing in MiG Alley: Outfitting a Fighter Pilot

Tue, 06 Nov 2007 13:00:00 EST

A pilot's gear is a sophisticated support system that can save his life in deadly situations.

Sputnik Declassified: Space Race Time Line

Wed, 31 Oct 2007 15:00:00 EST

Examine turning points in the Cold War competition to dominate space

Sputnik Declassified: A Tainted Legacy

Wed, 31 Oct 2007 15:00:00 EST

How should Wernher von Braun be remembered—as a Nazi engineer or a space visionary?

Sputnik Declassified: A Blow to the Nation

Wed, 31 Oct 2007 15:00:00 EST

The launch of Sputnik came as a shock to Americans long accustomed to being number one.

Sputnik Declassified: Build a Rocket

Wed, 31 Oct 2007 15:00:00 EST

Learn more about how the innovative German V-2 rocket worked by assembling it yourself.

Sputnik Declassified: What Satellites See

Wed, 31 Oct 2007 15:00:00 EST

Images from near-Earth orbit can tell us a lot about our world.

Marathon Challenge: Watch the Program

Wed, 31 Oct 2007 11:00:00 EST

This hour-long program is divided into five chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video.

Master of the Killer Ants: Jaglavak, Prince of Insects

Wed, 24 Oct 2007 17:00:00 EST

A Western visitor describes the Mofu's ancient alliance with this roaming red ant.

Master of the Killer Ants: Being Queen

Wed, 24 Oct 2007 17:00:00 EST

Nature's queens -- in ants, bees, naked mole rats, etc. -- have it made. Or do they?

Master of the Killer Ants: Bugs You Can Eat

Wed, 24 Oct 2007 17:00:00 EST

Fried dragonflies. Greasy tarantulas. Fat, juicy witchetty grubs. Find out what they taste like here.

Master of the Killer Ants: Amazing Ants Game

Wed, 24 Oct 2007 17:00:00 EST

Match eight ants -- the trap jaw and honey pot among them -- to their unique behaviors.

Judgment Day: Intelligent Design on Trial: Senior Executive Producer's Story

Tue, 23 Oct 2007 09:00:00 EST

Senior EP Paula Apsell explains why and how NOVA took on the contentious issue behind Kitzmiller v. Dover.

Judgment Day: Intelligent Design on Trial: In Defense of Intelligent Design

Tue, 23 Oct 2007 09:00:00 EST

Phillip Johnson, the father of ID, on the Wedge Strategy, why evolution "comes up short," and more

Judgment Day: Intelligent Design on Trial: In Defense of Evolution

Tue, 23 Oct 2007 09:00:00 EST

Biologist Ken Miller on why ID is a "science stopper," why evolution matters, and more

Judgment Day: Intelligent Design on Trial: Board vs. Teachers

Tue, 23 Oct 2007 09:00:00 EST

Read the Dover School Board's controversial disclaimer on evolution and the memo science teachers wrote in response.

Judgment Day: Intelligent Design on Trial: The Judge Speaks

Tue, 23 Oct 2007 09:00:00 EST

Listen in as Judge John Jones reads key excerpts from his landmark ruling.

Judgment Day: Intelligent Design on Trial: Defining Science

Tue, 23 Oct 2007 09:00:00 EST

Hear seven experts briefly describe the essence of science and how it differs from religion.

Judgment Day: Intelligent Design on Trial: Darwin's Predictions

Tue, 23 Oct 2007 09:00:00 EST

Over 150 years later, science continues to confirm most of Darwin's conjectures.

Judgment Day: Intelligent Design on Trial: Fossil Evidence

Tue, 23 Oct 2007 09:00:00 EST

Examine five different species transitions that have filled critical gaps in the fossil record.

Marathon Challenge: Team NOVA

Fri, 21 Sep 2007 11:00:00 EST

Meet the men and women who took on NOVA's challenge, and hear from their coaches.

Marathon Challenge: Marathon Diaries

Fri, 21 Sep 2007 11:00:00 EST

Four members of the team share their stories through video, e-mails, and interviews.

Marathon Challenge: The Training Calendar

Fri, 21 Sep 2007 11:00:00 EST

Examine week-by-week how Team NOVA prepared for the race.

Marathon Challenge: Ask the Expert

Fri, 21 Sep 2007 11:00:00 EST

Exercise and nutrition scientist Mim Nelson of Tufts University answers e-mailed questions.

Marathon Challenge: Fit to Go the Distance

Fri, 21 Sep 2007 11:00:00 EST

Find out how exercise transformed NOVA's runners and could enhance your health.

Marathon Challenge: Ten Tips

Fri, 21 Sep 2007 11:00:00 EST

Essential advice for rookie runners

Marathon Challenge: Mind of a Marathoner

Fri, 21 Sep 2007 11:00:00 EST

Uta Pippig shares her wisdom on the psychology of running.

Ghost in Your Genes: Epigenetic Therapy

Fri, 31 Aug 2007 09:00:00 EST

Dr. Jean-Pierre Issa examines the connection between epigenetics, aging, and cancer.

Ghost in Your Genes: A Tale of Two Mice

Fri, 31 Aug 2007 09:00:00 EST

In this audio slide show, hear how the epigenome can make identical-twin mice appear so different.

Ghost in Your Genes: Ask the Expert

Fri, 31 Aug 2007 09:00:00 EST

Geneticist Randy Jirtle answers questions about how our lifestyles, via epigenetics, can impact the health of our children, and more.

Ghost in Your Genes: Gene Switches

Fri, 31 Aug 2007 09:00:00 EST

Not all switches are epigenetic. As this slide show reveals, some are genetic—and amazingly powerful.

NOVA scienceNOW: Dispatch: A Cosmic Enigma

Wed, 22 Aug 2007 15:00:00 EST

Dark matter is a cosmic enigma. We can't see it or touch it—so what is it? We asked MIT physicist Max Tegmark about the nature of this strange substance and why it remains so mysterious.

NOVA scienceNOW: Ask The Expert: Epigenetics

Thu, 02 Aug 2007 14:00:00 EST

Randy Jirtle answered viewer questions about epigenetics on August 2, 2007.

Secrets of the Samurai Sword: The Stuff of Metal

Wed, 01 Aug 2007 14:00:00 EST

Why defects make metal stronger, how hardness differs from toughness, and other marvels of metal

Secrets of the Samurai Sword: Way of the Warrior

Wed, 01 Aug 2007 14:00:00 EST

Capture the essence of the samurai code of honor, from choosing life over death to stifling a yawn.

Secrets of the Samurai Sword: Making a Masterpiece

Wed, 01 Aug 2007 14:00:00 EST

Step by painstaking step, see what it takes to create a samurai sword.

Secrets of the Samurai Sword: History of the Samurai

Wed, 01 Aug 2007 14:00:00 EST

In this time line, follow the millennium-long story of these legendary warriors.

NOVA scienceNOW: Ask The Expert: T. Rex Blood?

Tue, 31 Jul 2007 11:00:00 EST

On July 31, 2007, Mary Schweitzer answered selected viewer questions about her discovery of what may be blood vessels and red blood cells, the implications of that and similar discoveries, and other matters dinosaurian and paleontological.

NOVA scienceNOW: Ask The Expert: Kronos

Mon, 30 Jul 2007 13:00:00 EST

On July 30, 2007, Jim Sanborn answered selected viewer questions about his sculpture Kryptos, including ones about the unsolved fourth part.

NOVA scienceNOW: Ask The Expert: Arlie Petters

Mon, 30 Jul 2007 13:00:00 EST

On July 30, 2007, Arlie Petters answered selected viewer questions about his life and work.