Astronomers think there are billions of black holes swallowing up planets and stars in violent feeding frenzies, and they are trying to see them in action.
The list of military eyewitnesses describing strange and threatening unidentified craft in US airspace is growing. And now, a US Navy radar operator has provided something more: Actual coordinates where UFOS appeared and disappeared. Lue Elizondo and a new partner follow the trail, and find that these unidentified craft are still seen. New eyewitnesses provide chilling details, and a correlation to US military sightings. As the reports mount, Lue closes in on a location where visitors are not allowed: Ground zero for the sightings.
A former US Navy radar operator emerges from the shadows to reveal the terrifying day it rained UFOs. For the first time, US Navy personnel unveil new details of the stunning encounter, including a shocking capability that could explain why UFOs are sighted over oceans. Evidence of a US military coverup emerges, as the team gets a major lead guiding them to an island with a long, clandestine history of UFO activity. Connections between UFOs and secret US aircraft must be explored.
UFO investigations have uncovered terrifying accounts of people who survived extreme encounters with extraterrestrial beings. Through dramatic re-enactments and expert interviews, this special explores real UFO case files of dangerous close calls between everyday citizens and otherworldly visitors.
Reveals how the elements of the periodic table have controlled the outcome of human history.
China is increasingly turning to technology to meet the needs of its burgeoning population. Will robots help the population, or put them out of work?
Solar and wind power, skyscraper farms and vertical forests; China is looking for sustainable, green solutions to some of its biggest challenges.
We often think of Napoleon Bonaparte as the incredible legislator and war leader, but we tend to forget that he was a prolific patron and instigated many constructions that are anchored in the Parisian landscape. The Arc de Triomphe, the Vendome Column, the Palais de la Bourse, the church of La Madeleine, the building of bridges and piercing of canals. This film tells the story of these megastructures that we owe to Napoleon. How many architects, sculptors, workers, had to be called for these constructions? How to build such imposing sites in the heart of Paris? How long did these construction works last as they were often disturbed by an unstable political context? Why were these changes necessary? What innovations in terms of materials and what technical prowess their constructions engendered? Examine these questions. Let's throw it back to the extraordinary transformations of the First Empire, a precursory work that will be extended and amplified during the Second Empire.
Napoleon III had one ambition to modernise the whole French capital city. Why? Because he had lived in London, a city that impressed him, and that Paris at the time was simply the opposite, a huge putrefaction workshop, where misery, plague and diseases worked together, with no room for the air or the sun to break. Napoleon employed Georges-Eugene Haussmann, who seemed to be the right man for the job, to take on a mission to aerate, homogenise and embellish Paris. How did they do it? Which revolutionary transformations did they undertake?
In 1858, Virgin Mary appears 18 times in the Grotto of Massabielle. At first, nobody believes it, but when the Catholic Church recognised the place, the construction of one of the biggest Christian complexes begins, and pilgrims rush to visit it... Today, it is the second most visited Catholic complex with about 600000 visitors per year. How did the architects manage to build big enough structures to welcome all these believers? 52 hectares, is the surface area on which the domain of the sanctuary spreads. It includes natural places such as the grotto, as well as monumental structures built by men: 15 pools, a church, no less than three basilicas, and a 1500 metres-long Stations of the Cross. Let's get back to the construction of these extravagant edifices. Four religious edifices were built one after another. The Basilica of the Immaculate Conception in 1866, the Rosary Basilica in 1881, the Basilica of St Pius X in 1956, and finally, the church of St Bernadette in 1986. All built in different styles and different times, what technical challenges had to be risen to for these constructions to see the light of day? What difficulties were encountered during the works? This film is the incredible story of a serious challenge: how to succeed in welcoming hundreds of thousands of believers while respecting and resisting the hostile natural environment of the Gave de Pau river.
Apollo astronauts and engineers tell the inside story of Apollo 8, the first manned mission to the moon. The US space program suffered a bitter setback when Apollo 1 ended in a deadly fire during a pre-launch run-through. In disarray, and threatened by the prospect of a Soviet Union victory in the space race, NASA decided upon a radical and risky change of plan: turn Apollo 8 from an earth-orbit mission into a daring sprint to the moon while relying on untried new technologies. Fifty years after the historic mission, the Apollo 8 astronauts and engineers recount the feats of engineering that paved the way to the moon.
Could a machine replace your doctor? Dr Hannah Fry explores the incredible ways AI is revolutionising healthcare, and what this means for all of us.
As Big Ben goes silent for a multimillion-dollar restoration, architectural historian Anna Keay gains exclusive behind-the-scenes access to the work.
What's really going on inside your stomach? In this program, Dr Michael Mosley offers up his own guts to find out. Using the latest in medical imagery and a tiny state of the art camera that he swallows at the start of the film, Michael takes viewers on a remarkable journey through his own internal system. At each stage he talks to medical experts and explains the amazing functions that happen without our conscious effort - and reveals a complexity and intelligence in the gut that science is only just beginning to uncover.
Join us on an extraordinary journey, that will explore the technological and scientific struggle for the survival of Venice, a survival that has been in doubt from its very construction. The sea level in Venice has increased drastically in the last century or so, threatening the very existence of the city. Global warming and the harmful effects of tourism have amplified the phenomenon of acqua alta (sudden rise in sea level), rendering the traditional responses of inhabitants obsolete. It is urgent to act today. Projects conceived in laboratories across the globe are joining forces to save the city. These include RAMSES, a 3D modelisation of the lagoon produced using lasers, which analyses rises in water level; and MOSE, a series of movable dams costing over 4 billion euros, intended to block the sea in case of acqua alta.
Dr Derek Muller takes us on an epic journey, a world-spanning investigation of vitamin science and history from molecules to marketing, from colds to chemotherapy. What he uncovers will confound opinions on all sides of the debate over vitamins and dietary supplements.
Comets have fascinated and terrified us for thousands of years as they're traditionally seen as harbingers of doom. So in 2013 when Comet ISON, a city-sized chunk of ice and rock hurtled towards us the world was on edge.
An extreme mission to the unexplored volcanoes of one of the world's most dangerous areas. Can the team uncover secrets that could save countless lives? Towering above the hostile border between the Democratic Republic of Congo and Rwanda are the Virunga Mountains, home to some of the least explored volcanoes in the world. Continuous wars and devastating natural disasters have made these volcanoes impossible to reach. Now a team of brave scientists and mountaineers are on a mission to study one of the world's most dangerous areas.
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