More everyday items go under the microscope with a look at how blast doors, lipstick and artificial palm trees are made.

How do they craft a classic Indian instrument, the Sitar? How do they make beef biltong? Plus, how do they build monster bulldozers?

How did pictures from the Hubble telescope make the comet of the century look like an alien spacecraft? Has earth already been invaded by alien organisms?

What are the mysterious trails on the lunar surface near the Apollo landing sites? Does a strange space object spell disaster for the crew of the space shuttle?

Rob Nelson heads to Lake Michigan to investigate an unexplained, Bermuda Triangle-like phenomenon that has caused ships to disappear for centuries.

Archaeology expert and adventurer, Josh Gates, travels to Great Britain to explore the origins of the mystical monument of Stonehenge.

A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Octocopter Drone, Mega Dump Truck, and Pacemaker?

A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Jet Wing, Space Suit, and Aerial Tramway?

A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Aircraft Carrier, and IMAX 3D Movie Experience?

A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Solar Car, Skyscraper, and Hydroelectric Power Plant?

A DIY guide for building humanity's greatest inventions. How are a communications satellite, a tower crane and a groundwater replenishment system built?

A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Rocketship, Hovercraft, and MRI Scanner?

How do they turn goat fleeces into fabrics? How do they build a quad bike that turns into a jet-ski? How do they create the harp?

How do they harvest thousands of tonnes of tea? How to they make sure that your luggage catches the same plane as you? How are high-quality hairbrushes made?

How do they keep the crooks from cracking into your credit card? How do they lift a 1000-tonne ship into the air while it is still in the water?

How do they build massive tunnels to prevent blackouts in one of the world's biggest cities? How do they turn pine forest into perfect pieces of timber?

How do they make the favourite sweet of the Ottomans, James Bond's gyroplane and the Supercat- the world's fastest ferry?

How do they carve longboards, turn millions of lemons into juice, and build industry's versatile heavy lifter, the forklift truck?

A power failure occurs on the ISS forcing the crew to consider abandoning the station. Plus, during a spacewalk a cosmonaut is nearly stranded after a suit malfunction.

A leak threatens the lives of astronauts upon re-entry. And a mission to the Salyut space station takes a surprise turn when the crew suffers from depressurisation.

Something in space is attacking the brains of our astronauts. What is it? Should NASA be worried about the sudden appearance of so-called space fireflies?

An astronaut on a spacewalk begins to drown. How could this alarming event happen? Plus, have NASA discovered an asteroid that's been converted into a spacecraft?

Find out how U-locks, teepees, croissants, and rolling luggage are made.

Find out how prams, factory-build homes, wood flutes, and bicycle tyres are made.

Find out how thinning shears, wagon wheels, toaster pastries, and violin bows are made.

Find out how bathtubs, Hopi Kachina dolls, mine truck engines, and memory cards are made.

More everyday items are put under the microscope, with a closer look at out how cycling shoes, yurts, marine plywood, and encaustic paint are made.

Find out how paper fans are produced, walnut oil is manufactured and copper is made.

Explore the universe in breathtaking ultra-high-definition. For the past several years, space agencies have been capturing the wonders of the cosmos with unprecedented resolution.

A swarm of spacecraft depart their mother ship and hover in Earth's atmosphere. The ships deposit thousands of mysterious pods. Are they a message, a gift or a weapon?

As a mysterious alien technology spreads across our globe, so do fears of contagion. Scientists discuss the implications of encountering life as we don't know it.

A dangerous storm threatens to shut down the operation just as Darrell and team discover gold ore in the remains of an old wreck.

Leading to one of the richest finds in Darrell's career, the team discovers ornate artefacts that indicate the location of a 16th century captain's quarters.

Justin and Emiliano scan the Florida landscape and dive in waters teaming with alligators as they try to unravel the mystery of the Mayan empire's fate.

A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Octocopter Drone, Mega Dump Truck, and Pacemaker?

A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Jet Wing, Space Suit, and Aerial Tramway?

How do they turn goat fleeces into fabrics? How do they build a quad bike that turns into a jet-ski? How do they create the harp?

How do they harvest thousands of tonnes of tea? How to they make sure that your luggage catches the same plane as you? How are high-quality hairbrushes made?

How do they keep the crooks from cracking into your credit card? How do they lift a 1000-tonne ship into the air while it is still in the water?

How do they build massive tunnels to prevent blackouts in one of the world's biggest cities? How do they turn pine forest into perfect pieces of timber?

More everyday items go under the microscope with a look at how carbon fibre and railcar movers are made.

More everyday items go under the microscope with a look at how sawhorses and toolboxes, sorbet pops and school buses are made.

More everyday items go under the microscope with a look at how objects from sanders to solid terrain models are made.