Pioneer Venus

The Pioneer Venus probe was one part of a "multi-probe" spacecraft designed to send four probes from a courier "bus" down through the atmosphere of Venus. The probe contained seven science experiments to collect samples and readings about the atmosphere's composition as it parachuted down to Venus' surface. Entry forces on the probe exceeded 300g, but the probe performed perfectly, sending data back to Earth until its planned crash into the planet's surface, less than an hour after it entered the atmosphere. ASNA provided parachutes for the mission which featured unique materials to cope with the sulfuric acid in Venus’ atmosphere.