The Mystery of Chaco Canyon

Chaco Canyon, located in northwest New Mexico, is perhaps the only site in the world constructed in an elaborate pattern that mirrors the yearly cycle of the sun and the 19-year cycle of the moon. How did an ancient civilization, with no known written language, arrange its buildings into a virtual celestial calendar, spanning an area roughly the size of Ireland?

Black Hole Hunters

A team of international scientists attempt to document the first-ever image of a black hole.

Shadow Chasers

This feature-length documentary is a portrait of eclipse chasers, people for whom solar eclipses - among nature's more spectacular phenomena – are a veritable obsession. The film follows 4 of them as they travel incredible distances to witness the last total eclipse of the millennium as it sweeps eastward across Europe to India. At various points along the way enthusiasts Alain Cirou in France, Paul Houde in Austria, Olivier Staiger in Germany and Debasis Sarkar in India offer their impressions of the historic event.

Near Earth Asteroids: Dr. Anne Virkki

At Arecibo Observatory in Puerto Rico, “Near Earth Asteroids: Dr. Anne Virkki” tells the story of Research Scientist Anne Virkki and her ongoing studies on asteroids and their threat to humanity. Originally from Finland, Anne Virkki shares her experience in education as well as her studies on asteroids, including her work hunting and tracking asteroids headed for Earth.

Pluto and Beyond

Since it explored Pluto in 2015, the New Horizons spacecraft has been zooming toward NASA's most distant target yet. Join the mission team as the probe attempts to fly by Ultima Thule, an object 4 billion miles from Earth.

L'autre monde des dinosaures

Hubble: Thirty Years of Discovery

For thirty years, NASA's Hubble Space Telescope has discovered new alien worlds, black holes, and the age of the universe itself; NASA astronauts reveal the secret history of the life-or-death missions to keep this complex machine working.

The Egtved Girl

In 1921, in the Danish town of Egtved, on the Jutland peninsula, was discovered one of the most important Bronze Age burial sites: the tomb of a girl who lived around 1370 BCE. Who was that girl and what was her daily life like?

Beyond Hubble: Launching the Telescope of Tomorrow

Following engineers and scientists on a groundbreaking mission as they build, test and launch the James Webb Space Telescope, the most powerful observatory ever constructed, and discovers the astonishing cosmological mysteries it will investigate.

Nostalgia for the Light

In Chile's Atacama Desert, astronomers peer deep into the cosmos in search for answers concerning the origins of life. Nearby, a group of women sift through the sand searching for body parts of loved ones, dumped unceremoniously by Pinochet's regime.

Riding Light

In our terrestrial view of things, the speed of light seems incredibly fast. But as soon as you view it against the vast distances of the universe, it's unfortunately very slow. This animation illustrates, in realtime, the journey of a photon of light emitted from the surface of the sun and traveling across a portion of the solar system, from a human perspective. Liberties were taken with certain things like the alignment of planets and asteroids, as well as ignoring the laws of relativity concerning what a photon actually "sees" or how time is experienced at the speed of light, but overall the size and distances of all the objects were kept as accurate as possible. It was also decided to end the animation just past Jupiter to keep the running length below an hour.

Secrets of the Neanderthals

This documentary delves into the mysteries surrounding the Neanderthals and what their fossil record tells us about their lives and disappearance.

Mystery of the Megaflood

The Channeled Scablands in Washington state defied conventional explanations for their formation for decades. Little by little evidence mounted for an old theory that was rejected by the scientific establishment. It involved glaciers, volcanoes, a relatively minor river and a prodigious amount of water. Originally aired as an episide of NOVA.

Searching for Planet 9

At the edge of our solar system supposedly lies an immense planet. Five to ten times the size of the Earth. Several international teams of scientists have been competing in a frantic race to detect it, in uncharted territories, far beyond Neptune. The recent discovery of several dwarf planets, with intriguing trajectories, have put astronomers on the trail of this mysterious planet. Why is this enigmatic planet so difficult to detect? What would a ninth planet teach us about our corner of the universe? Could it help us unlock some of the mysteries of our solar system?

Cave of Forgotten Dreams

Werner Herzog gains exclusive access to film inside the Chauvet caves of Southern France, capturing the oldest known pictorial creations of humankind in their astonishing natural setting.

Chasing the Equinox

The ancients hid the secrets of their incredible knowledge of astronomy in their temples and palaces, built to align with the sun, on the same day, all over the world. Revealing our species' obsession with the sun, across thousands of years and every continent, this is architectural magic on a cosmic scale.

Who killed the Neanderthal?

Neandertal man disappeared abruptly 30,000 years ago. Who was that "other" man and what is the most plausible hypothesis leading to his extinction? An investigation using all current knowledge available tries to answer these questions.

Passage of Venus

Photo sequence of the rare transit of Venus over the face of the Sun, one of the first chronophotographic sequences. In 1873, P.J.C. Janssen, or Pierre Jules César Janssen, invented the Photographic Revolver, which captured a series of images in a row. The device, automatic, produced images in a row without human intervention, being used to serve as photographic evidence of the passage of Venus before the Sun, in 1874.

Wonders of the Moon

Documentary which uses the latest, most detailed imagery to reveal the monthly life cycle of the moon. From Wales to Wyoming, Hong Kong to Croydon, the programme finds out how the moon shapes life on Earth, as well as exploring its mysterious dark side and discovering how the moon's journey around Earth delivers one of nature's most awe-inspiring events - a total solar eclipse. And at the end of a remarkable year of lunar activity, we find out why so many supermoons have been lighting up the night sky.

400 Years of the Telescope

A documentary chronicling the history of the telescope from the time of Galileo. Featuring interviews with leading scientists discussing Galileo's first use of the telescope to the latest discoveries in cosmology.