The Farthest review – Nasa documentary voyages to the outer limits

A witty, fascinating film about the Voyager I and II probes, launched in 1977 and now carrying their golden records beyond the solar system and into deep space

This exquisite, exemplary science documentary, directed by Irish editor turned helmer Emer Reynolds, recounts the rich and fascinating story of the Voyager mission, arguably Nasa's finest, noblest contribution to scientific understanding. Launched in 1977, Voyager I and II were sent billions of miles to the outer limits of our solar system to gather information about Jupiter, Saturn, Uranus and Neptune and then into deep space. In 2012, Voyager I slipped through the heliopause and officially became the first human-made object to reach interstellar space, and it's still going today, to infinity and beyond.

Related: 40 years and counting: the team behind Voyager's space odyssey