The combustion of fuel and air in the engine and the fire in the heart of a rider willing to risk everything to win. Time is the enemy. The fractions of a second lost or gained in every corner which add up to defeat or victory. And the few years that you have to make it to the top. 'Hitting the Apex' is the story of six fighters - six of the fastest motorcycle racers the world has ever seen - and of the fates that awaited them at the peak of the sport.

Boxing, 'the poor man's sport', has long given kids from America's roughest neighborhoods an opportunity to escape violence with violence. But with success in the ring comes new fights for which there is no training: champions are made and broken in the blink of an eye, and young men thrust into the spotlight are often ill-equipped for the fame, fortune, and hangers-on that accompany a title belt". And for many, the toughest bouts are fought during retirement, when health and financial issues begin to mount. Built around the stories of heavyweight legends as Mike Tyson, Evander Holyfield and Bernard Hopkins, We will examine their lives in and out of the ring.

Follow the life and career of Portuguese footballer Cristiano Ronaldo, who currently plays for Spanish club Real Madrid and the Portugal national team, through a series of interviews with Ronaldo himself as well as friends and family. Directed by Anthony Wonke and executive-produced by Asif Kapadia, Ronaldo was shot over the course of 14 months with the film-makers gaining access to Ronaldo's private life and inner circle of friends, family and team-mates. The film was shot in Madeira, Lisbon, and Madrid, where he currently resides as a squad member of Real Madrid.

Explore the latest science behind the headlines and the coolest scientific developments that impact our lives. Technology catapults to new heights in 2015, going faster and further than ever before. We have canvassed the world in search of the best and most fascinating science and tech stories of the year for 2015 YEAR IN SCI-TECH". This action-packed hour of fun and intrigue revisits the world’s first glimpse of Pluto and images of water on Mars while exploring what this all could mean for intelligent life in the universe – all while earthling’s inch closer to becoming actual space tourists. Throughout the hour, we revisit the year’s most amazing techological feats and scientific discoveries, including new and elusive animal species discovered deep under the ocean, as well as the hottest tech trends – from hover boards to driverless cars and trucks, and the newest advances in mind-blowing virtual reality.

In the high-stakes game of big-wall climbing, the Shark’s Fin on Mount Meru may be the ultimate prize. Sitting at the headwaters of the sacred Ganges River in Northern India, the Shark’s Fin has seen more failed attempts by elite climbing teams over the past 30 years than any other ascent in the Himalayas. To undertake Meru, says Jon Krakauer, the bestselling author of Into Thin Air, "You can’t just be a good ice climber. You can’t just be good at altitude. You can’t just be a good rock climber. It’s defeated so many good climbers and maybe will defeat everybody for all time. Meru isn’t Everest. On Everest you can hire Sherpas to take most of the risks. This is a whole different kind of climbing."

The Reel Rock Film Tours have been thrilling crowds in more than 80 cities around the world with the best climbing and outdoor adventure films of the year. More than just film screenings, Reel Rock shows are festive events where climbers and outdoors lovers gather to celebrate their shared passion for adventure. From big walls to big moves, REEL ROCK 10 features athletes Tommy Caldwell, Kevin Jorgeson, Alex Honnold, Jimmy Webb, Daniel Woods and a special tribute to the late Dean Potter. This year's tour boasts an eclectic program that will get you psyched!