On Sept. 15, 1968, the Soviet Union launched tortoises and more on the Zond 5 spacecraft, which looped around the moon and returned to Earth. See how it happened in our On This Day In Space video series.
- On This Day in Space! Sept. 19, 1996: STS-79 Docks with Mir Space Station
- SpaceX’s New BFR Spaceship Really Does Look Like Tintin’s Moon Rocket
- Giant Ice Volcanoes Once Covered Dwarf Planet Ceres
- Japan’s Hayabusa2 Sees Its Shadow on Asteroid Ryugu in New Photos
- Weird Infrared Signal Emanates Across Space, But What Created It?