National Geographic Channel HD Friday

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The various types of air pollution, including greenhouse gases, methane being released as northern ice melts and and increase in carbon dioxide

Experts investigate when a passenger plane slams into a fighter jet, and when two flights crash in the world's deadliest-ever mid-air collision

Investigators seek answers for the families of 298 people killed when an airliner went down over a warzone in eastern Ukraine

Investigators try to solve the mystery of why a brand new design of jet crashed during a demonstration flight

Reconstructions of high-profile aviation disasters, including Lion Air Flight 610, which plunged into the sea on October 29, 2018

Arguably the deadliest single-aircraft accident in aviation history, in August 1985, when a Boeing 747 jumbo-jet suffered a fatal decompression that ripped off most of the tail

The story of the most technologically advanced battleships in the German navy during the Second World War - and how many of them ended up on the sea bed

Exploring a history of groundbreaking ordnance, from a guided anti-ship gliding bomb to the world's first precision-guided weapon deployed during combat

Aerial footage of railway journeys. In the opening episode, the Glacier Express is filmed from above, winding along alpine peaks as it connects St Moritz and Zermatt

Tim Shaw and Fuzz Townshend take on a 1924 Austin 7 Chummy - that doesn't actually belong to its 'owner'

It's 1944, and the Allies have launched a daring attack on the Nazi-occupied Netherlands in a bid to bring the Second World War to an end

Former racing driver Niki Lauda, the founder of Lauda Air, joins forces with investigators looking into the crash of Lauda Air Flight 004 of May 1991

When a two-billion-dollar Stealth Bomber crashes in Guam, it is up to the US Air Force to investigate the most expensive aviation accident of all time

Investigators examine similarities between a crash landing at Tokyo's Narita Airport and an accident at Newark Airport more than a decade earlier

Documentary charting how US Airways Flight 1549 was forced to land on the Hudson River in 2009 when both of its engines failed, and the rescue operation that ensued

The investigation into the crash of a Pakistani airliner in the Himalayas is derailed when the most vital piece of evidence proves inconclusive

Travellers are reunited with lost treasures, including an expensive pair of vintage Air Jordans, sweaty boxing gear and a stuffed animal

San Diego HSI seizes a medley of narcotics hidden in a car, CBP processes ferry travellers in Puerto Rico, and officers at JFK discover looted artifacts

The factory that produces the world's most powerful tractors, and which incorporates a giant iron foundry into its advanced manufacturing operation

Jay makes a big find under a pile of rubble in an 18th-century mill, including a set of antique tiles with an estimated value of $140 each

The team searches a disused paper factory. However, as the facility has plans to become a museum it remains unclear whether they will be able to acquire any assests

The documentary exploring how certain items of food and drink are made concludes, with another visit to the production line

Discover how delicious candy wafers, sumptuous steak and ale pies and ginseng soft drinks are created from raw materials to finished products

Exploring the shoreline surrounding Recife in Brazil, one of the world's most dangerous sites for shark attacks with over 60 attacks since the 1990s, nearly half of them fatal

Experts from across Western Australia examine a rise in great white shark sightings and attacks on the coast in 2010

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