
Cosmic Journeys - Voyage to Pandora - First Interstellar Space Flight
Alpha Centauri, the real star system that inspired the fictional world of Pandora in Avatar, is the nearest star system to our Sun at 4.37 light-years away, and this film treats it as a genuine candidate for humanity's first interstellar mission. It explains why Alpha Centauri's two orbiting stars long discouraged planet hunters, until the discovery of a Jupiter-sized planet around the binary system Gamma Cephei suggested such neighborhoods could hold worlds after all. The film walks through the distances involved using Voyager 1 as a yardstick: launched in 1977, it now travels at roughly 40,000 miles per hour and has covered 110 astronomical units, yet would still need about 73,000 years to reach Alpha Centauri. It weighs antimatter propulsion, harvested in tiny amounts from particle colliders, as a more plausible fuel than science fiction's imagined elements, and looks ahead to the James Webb Space Telescope's infrared instruments as a tool for reading the atmospheres of any planets found there. The film closes on the mismatch between our curiosity and our current engineering.