May 1978 Pioneer Venus Multiprobe (Pioneer Venus 2, Pioneer 13) – launched August 1978 Pioneer Venus Probe Bus – transport vehicle and upper atmosphere probe Pioneer Venus Large Probe – 300 kg parachuted probe Pioneer Venus North Probe – 75 kg impactor probe Pioneer Venus Night Probe – 75 kg impactor probe Pioneer Venus Day Probe – 75 kg impactor probe See also Mariner program Pioneer anomaly Ranger program Surveyor program Timeline of Solar System exploration Voyager program References External links Pioneer (Moon) Program Page by NASA's Solar System Exploration Mark Wolverton's The Depths of Space online Thor Able – Encyclopedia Astronautica Space Technology Laboratories Documents Archive WebGL-based 3D artist's view of Pioneer @ SPACECRAFTS 3D 1958 in spaceflight NASA programs