Biggest Space Milestones: Project Mercury, Camera Tracking, The ISS | Free Documentary

Trajectory: Milestones in Space Exploration - Episode 3: Project Mercury Advances, Camera Tracking, The International Space Station

Today, although a cloud of satellites surrounds the planet, many records set during the early decades of space exploration remain unsurpassed. It's more than forty years since the last man walked on the moon and the world no longer has a reusable spacecraft. Trajectory looks at milestones in space exploration along with the latest scientific and commercial developments.

Space Milestones:
Project Mercury Advances - America's first manned space program.
Camera Tracking - The array of special cameras that follow a spacecraft at launch.
The International Space Station - The building and operation of the orbiting laboratory.

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