Star Citizen and professor Maximillion Striker's landmark 30th century documentary series charting the lore and technological accomplishments that carried humanity from a single planet species to an empire that spans 37 star systems.
Episode 1 - The Hard Climb tells the story of the first massive hurdle to face humanity on their journey to the stars. Old Earths gravity well, and the means by which the primitive 20th and 21st century people of earth overcame it to take their first steps into the heavens.
For reasons not entirely clear this broadcast was the first horizon's edge program to appear in the 21st century. The means by which this occurred remain mysterious, though experts have offered "Wibbly, wobbly, timey, wimey" as an explanation. It may be significant that the temporally ambiguous Citizencon 2952 took place just a day later.