Last Watched

"Mass"  Sort by

Inside the Milky Way

   2011    Science
Embark on an astounding journey across 100,000 light-years to witness key moments in the history of the Milky Way. Using cutting-edge science, National Geographic constructs a 3-D state-of-the-art CGI model of our galaxy. We'll peer into the heart of the Milky Way on the hunt for super-massive black holes, watch how stars are born and die, fly out and above the plane of our galaxy to understand its true shape and scour its dusty spiral arms for the possibility of life

Black Holes: Heart of Darkness

   2021    Science
The centre of our galaxy is home to an invisible monster of unimaginable power – a supermassive black hole named Sagittarius A star, with four million times the mass of the Sun. Recent astronomical breakthroughs have confirmed not only that black holes like Sagittarius A star exist, but that these bizarre invisible objects may be the ultimate galactic protagonists.
Stunning CGI takes us back to witness the fiery origins of our galaxy’s black hole 13.6 billion years ago, when the early universe was home to colossal blue stars, and when they ran out of fuel, they collapsed under their own enormous mass, crushing down into an object so small and so dense it punched a hole in the fabric of the universe. Over billions of years, Sagittarius A star feasted on nearby gas, stars, and through cataclysmic mergers with other black holes. A breakthrough discovery by Nasa’s Fermi gamma-ray telescope has shown that our black hole had the power to sculpt the entire galaxy, creating vast bubbles of gas above and below our galaxy and even protecting stars systems as ours.
In a mind-bending conclusion, Brian Cox reveals how our modern understanding of black holes is challenging our concepts of reality to the breaking point. In trying to understand the fate of objects that fall into Sagittarius A star, scientists have come to a stunning conclusion: space and time, concepts so foundational to how we experience the world around us, are not as fundamental as we once thought.
Series: Universe

Jupiter Revealed

   2018    Science    HD
This documentary journeys with the scientists into the heart of a giant. Juno is the Nasa mission designed to peer through Jupiter's swirling clouds and reveal the wonders within. By projecting a 70-foot-wide, life-size Juno on a Houston rooftop, Scott Bolton, head of Juno, shows us how its fragile electronics are encased in 200kg of titanium. As Scott puts it, 'we had to build an armoured tank to go there.' Professor Andrew Ingersoll, Juno's space weatherman, reveals they have seen lightning inside Jupiter, perhaps a thousand times more powerful than Earth's lightning. This might be evidence for huge quantities of water inside Jupiter.
Under the extreme conditions of Jupiter thousands of miles under the surface, hydrogen becomes a liquid metal. Juno is finding out how much liquid metallic hydrogen is inside Jupiter, and scientists hope to better understand how this flowing metal produces the most powerful aurora in the Solar System. But what is at Jupiter's heart? In Nice, Prof Tristan Guillot explains how Juno uses gravity to map the planet's centre. This can take scientists back to the earliest days of the solar system, because Jupiter is the oldest planet and it should contain clues to its own creation. By chalking out an outline of the Jupiter, Tristan reveals there is a huge rocky core - perhaps ten times the mass of Earth.

Fleetwood Mac Live in Boston 2of2

   2004    Art
The band are captured performing live on 23–24 September 2003 at the FleetCenter (now known as the TD Garden) in Boston, Massachusetts during the group's Say You Will Tour, before a specially invited audience of industry insiders and friends. Having sold an amazing amount of records, and gone through tumultuous personal problems that would have finished off most bands, Fleetwood Mac have created an enduring legacy for themselves.
Series: Fleetwood Mac Live in Boston

Atlantis End of a World Birth of a Legend

   2011    History
The documentary is to tell the dramatic story of the greatest natural disaster to shake the ancient world, a disaster that triggered the downfall of a civilisation and spawned a legend. Around 1620 BC a gigantic volcano in the Aegean Sea stirred from its 19,000-year slumber. The eruption tore the island of Thera apart, producing massive tsunamis that flooded the nearby island of Crete, the centre of Europe's first great civilisation – the Minoans. This apocalyptic event, many experts now believe, provided the inspiration for the legend of Atlantis. Based on the work of leading scientists, archaeologists and historians, this drama immerses viewers in the exotic world of the Minoans.

Triumph

   2015    Science    3D    HD
David Attenborough concludes his epic history of the evolution of flight with an exploration of the highly advanced fliers that dominate our skies today – the extraordinarily diverse skills of the birds, and the sonar-guided precision of the bats. He encounters some of our planet’s most remarkable fliers – from peregrine falcons dive-bombing starlings over Rome, to hummingbirds hovering in the cloud forests of Ecuador. In a spectacular finale, he visits Gomantong cave in Borneo to witness the mass exodus of a million bats.
Series: Conquest of the Skies
Becoming Martian

Becoming Martian

2021  Technology
Dinosaur Planet

Dinosaur Planet

2003  Science
Space Race

Space Race

2005  Technology
Oceans

Oceans

2009  Nature
Coldplay Live

Coldplay Live

2012  Art
Chemistry

Chemistry

2010  Science