Undaunted: The Forgotten Giants of the Allegheny Observatory

On 21 December 1988 a Pan Am 747 jet exploded over the small Scottish town of Lockerbie. On the 25th anniversary of the worst terrorist attack on British soil, this is the story.

The De Havilland Comet was the world's first passenger jet airliner. But less than two years into service, two aircraft blew up in mid-air, killing all aboard. PM Winston Churchill ordered an assemblage of experts to discover what went wrong - in the process, inventing many of the air crash investigation techniques still used today.

Three billion miles away a grand-piano-sized spacecraft is speeding through the outer solar system at nearly 1,000 miles per minute. After nearly a decade in space, the New Horizons space probe will have just 86 seconds to complete its primary mission: Discover the planet Pluto. This time-sensitive special will showcase the first quality pictures of Pluto that the probe will capture.

Although the mountain volcano Mauna Kea last erupted around 4,000 years ago, it is still hot today, the center of a burning controversy over whether its summit should be used for astronomical observatories or preserved as a cultural landscape sacred to the Hawaiian people. For five years the documentary production team Nā Maka o ka 'Āina ("the eyes of the land") captured on video the seasonal moods of Mauna Kea's unique 14,000-foot summit, the richly varied ecosystems that extend from sea level to alpine zone, the legends and stories that reveal the mountain's geologic and cultural history, and the political turbulence surrounding the efforts to protect the most significant temple in the islands: the mountain itself.

At any given moment hundreds of people are soaring above us in a 747. From the moment the very first jumbo jet took off in 1969, it has been the aircraft against which all others are judged. But its 45-year journey has been anything but smooth. This is the definitive story of the Boeing 747, from its milestones and triumphs to its turning points and disasters. Witness its history through rare archival footage and tales from pilots, engineers, designers, and passengers who were there when it all began.

Man has always sought to seek further afield. After the seafaring explorers of the 16th century, 21st century cosmologists today navigate more celestial oceans, with each mission providing an ever-broader and more impressive cartography of our surroundings. At the avant garde of modern technology, these strange travellers are actually immobile, and their vessels are powerful and spectacular telescopes, on the Earth or in space, constantly widening the limits of our knowledge and giving form to our dreams of infinity. From Hawaii to Australia, via South Africa and China, we set out on an incredible scientific and human adventure to visit the planet's greatest cosmic exploration centres to discover the new challenges involved in understanding the universe. A journey on Earth and in the heavens that will take your breath away!

How's it all gonna end? This experience takes us on a journey to the end of time, trillions of years into the future, to discover what the fate of our planet and our universe may ultimately be. We start in 2019 and travel exponentially through time, witnessing the future of Earth, the death of the sun, the end of all stars, proton decay, zombie galaxies, possible future civilizations, exploding black holes, the effects of dark energy, alternate universes, the final fate of the cosmos - to name a few.

On an expedition through Latin America, Italian General Italo Balbo made the Atlantic crossing with his seaplane squadron, which left Boloma, entered Brazilian territory via Natal and now ended its journey in the capital Rio de Janeiro. Arrival of the fascist squadron at Enseada de Botafogo. People, many in boats, applaud the descent of the seaplanes. A group of officers searches the soldiers in profile. Italo Balbo, Ambassador Vittorio Cerrutti and Royal Consul Onorevole Mammalella watch the parade of troops. A group of officers with Col. Magdalena, "the intrepid hero of several aerial feats". At the Catete Palace, Balbo and Cerrutti are received by the President of the Provisional Government, Getúlio Vargas, and his ministers. The Italian delegation leaves the Catete Palace.

This 2004 documentary by Werner Herzog diaries the struggle of a passionate English inventor to design and test a unique airship during its maiden flight above the jungle canopy.

An exhilarating documentary film that celebrates the unsung hero of aviation - the local airport - by tracing the life, history, and struggles of an airport icon: Southern California's Van Nuys Airport. Featuring thrilling aerial photography and a sweeping original score, the film dispels common misconceptions and opposes criticism of General Aviation airports.

Explorer Robert Ballard sets out to solve the mystery of Amelia Earhart's disappearance as he and a team of experts travel to the remote Pacific atoll named Nikumaroro in search of her final resting place.