Narrated by David Tennant, this documentary focusing on the flight of birds was filmed over four years and forty countries with help from camera-carrying birds, drones, paragliders and remote-control microflight planes.

Join the History Channel for the ultimate 35th birthday celebration of one of the most extraordinary events of the 20th century, in this incomparable collector's commemoration of the moonwalk and the early days of the space race.

At any one time, there are around one million people airborne somewhere in the world; that equates to an entire airborne city -- a "city in the sky." Straddling whole continents, the fabric of this extraordinary construction consists of the 100,000 flights that crisscross the world every single day. Take off around the world, on the arc of an actual journey from departure to arrival, to uncover the invisible global networks and complex logistics that...

Chasing the moon reimagines the race to the moon for a new generation, upending much of the mythology surrounding the effort. The series recasts the Space Age as scientific innovation, political calculation, media spectacle, visionary impulses and personal drama. Utilizing overlooked and lost archival material, the film features a cast of characters who played key roles in these historic events.