Curiosity NOW

E2 How the flow of water has the power to shape all inhabitants on Earth, produces climate-changing weather and supporting species, from the largest whales to microscopic plankton.

E1 Arid and unforgiving, deserts push their inhabitants to the extreme; from the desert elephant to the shovel-snouted lizard, see how they survive.

E2 Rivers are the life veins of this planet, offering all those that depend on them respite from both heat and thirst; a look into how for the life they give, they also take away.

E3 Africa's rainforests are second only to the Amazon in size; see these tangled worlds, that are home to chimpanzees, gorillas and forest elephants, one of the last remaining strongholds for the planet's wild creatures.

E3 A miraculous mantle envelops the entire planet - a thin skin of gasses called 'air'. Without it, there would be no life or weather, no habitable conditions, or protection from lethal ultraviolet radiation or meteorites from outer space.

E1 It's the solid crust of our planet, the perfect element in which to record the stories of deep time and of lifetimes. Change and progression is the way of earth. Air and water turn solid rock into soil.

E2 How the flow of water has the power to shape all inhabitants on Earth, produces climate-changing weather and supporting species, from the largest whales to microscopic plankton.

E1 Arid and unforgiving, deserts push their inhabitants to the extreme; from the desert elephant to the shovel-snouted lizard, see how they survive.

E2 Rivers are the life veins of this planet, offering all those that depend on them respite from both heat and thirst; a look into how for the life they give, they also take away.

E3 Africa's rainforests are second only to the Amazon in size; see these tangled worlds, that are home to chimpanzees, gorillas and forest elephants, one of the last remaining strongholds for the planet's wild creatures.

E3 A miraculous mantle envelops the entire planet - a thin skin of gasses called 'air'. Without it, there would be no life or weather, no habitable conditions, or protection from lethal ultraviolet radiation or meteorites from outer space.

E1 It's the solid crust of our planet, the perfect element in which to record the stories of deep time and of lifetimes. Change and progression is the way of earth. Air and water turn solid rock into soil.

E2 How the flow of water has the power to shape all inhabitants on Earth, produces climate-changing weather and supporting species, from the largest whales to microscopic plankton.

E1 Keith and Josh attend a Barrett-Jackson event in Scottsdale, Ariz., where they find a beautifully restored Chevrolet Chevelle SS LS5 and test out a Porsche 930 Turbo; Keith gets behind the wheel of a Ferrari 365 GTB/4 Daytona.

E2 Keith Martin and Josh Nasar encounter plenty of muscle at a Barrett-Jackson collector car auction in Scottsdale, Ariz., including a Pontiac GTO Judge and a 1987 Buick GNX.

E3 A Yenko goes up for sale in Scottsdale, Ariz.; an eye-popping Lamborghini Gallardo is found at an Auctions America event in Florida.

E4 Keith tests the power of fuel injection in a 1965 Chevrolet Corvette, while Josh takes a spin in a 1996 Porsche 911 Turbo; RM Auctions in Arizona offers up a Ferrari 512 TR.

E5 An elegant, short-nosed Ferrari 275 GTB hits the auction block in Arizona and hammers at an impressive number.

E6 An Oldsmobile 4-4-2 with a highly sought-after W30 option; a legendary Shelby 289 Cobra with sentimental value hits the auction block.

E7 Keith and Josh reflect on classic vehicles from 1991, including a Ferrari Testarossa and an Alfa Romeo Spider.

E8 Keith Martin and Josh Nasar attend a Barrett-Jackson auction event in Scottsdale, Ariz., where they drive a low-mileage Ferrari 512 TR and a survivor 1967 Corvette.

E9 Josh takes a spin in a 2005 Ford GT, a sports car inspired by the 1960s GT40 that achieved success at the 24 Hours of Le Mans.

E10 A rare Lamborghini Miura SV, one of only five single-sump SVs sold new to the United States, hits the auction block in Arizona.

E11 Keith cruises in a restored Alfa Romeo Giulietta Spider Veloce; Josh drives a 1997 Porsche Turbo S, which was the last 911 Turbo manufactured with an air-cooled engine.

E12 Vehicles at a Barrett-Jackson event in Scottsdale, Ariz., include a 1967 Shelby GT500 Fastback and a 1970 Plymouth 'Cuda with an original 440 Six-Pack.

E1 Keith and Josh attend a Barrett-Jackson event in Scottsdale, Ariz., where they find a beautifully restored Chevrolet Chevelle SS LS5 and test out a Porsche 930 Turbo; Keith gets behind the wheel of a Ferrari 365 GTB/4 Daytona.

E2 Keith Martin and Josh Nasar encounter plenty of muscle at a Barrett-Jackson collector car auction in Scottsdale, Ariz., including a Pontiac GTO Judge and a 1987 Buick GNX.

E3 A Yenko goes up for sale in Scottsdale, Ariz.; an eye-popping Lamborghini Gallardo is found at an Auctions America event in Florida.

E4 Keith tests the power of fuel injection in a 1965 Chevrolet Corvette, while Josh takes a spin in a 1996 Porsche 911 Turbo; RM Auctions in Arizona offers up a Ferrari 512 TR.

E5 An elegant, short-nosed Ferrari 275 GTB hits the auction block in Arizona and hammers at an impressive number.

E6 An Oldsmobile 4-4-2 with a highly sought-after W30 option; a legendary Shelby 289 Cobra with sentimental value hits the auction block.

E7 Keith and Josh reflect on classic vehicles from 1991, including a Ferrari Testarossa and an Alfa Romeo Spider.

E8 Keith Martin and Josh Nasar attend a Barrett-Jackson auction event in Scottsdale, Ariz., where they drive a low-mileage Ferrari 512 TR and a survivor 1967 Corvette.

E9 Josh takes a spin in a 2005 Ford GT, a sports car inspired by the 1960s GT40 that achieved success at the 24 Hours of Le Mans.

E10 A rare Lamborghini Miura SV, one of only five single-sump SVs sold new to the United States, hits the auction block in Arizona.

E11 Keith cruises in a restored Alfa Romeo Giulietta Spider Veloce; Josh drives a 1997 Porsche Turbo S, which was the last 911 Turbo manufactured with an air-cooled engine.

E12 Vehicles at a Barrett-Jackson event in Scottsdale, Ariz., include a 1967 Shelby GT500 Fastback and a 1970 Plymouth 'Cuda with an original 440 Six-Pack.