Mercury-P
Mercury-P is a mission concept for an orbiter and lander by the Russian Federal Space Agency to study the planet Mercury. The letter P in Mercury-P stands for the Russian word 'posadka', meaning landing.
Mercury-P would be the first soft lander on Mercury. A proposed flight scenario for the mission included a flyby of Venus, the insertion of the spacecraft into the orbit around Mercury, and the delivery of a lander on its surface. The Institute of Space Research studied the possibility of "recycling" hardware developed for the Phobos-Grunt, Mars-NET, Mars-96, and Solar Sail spacecraft, with proposed upgrades of the hardware., Russian scientists have conducted a preliminary concept study of the project, and compiled a list of the required scientific payload.
As a result of the failure of the Phobos-Grunt, several Russian planetary exploration proposals derived from its design were delayed into the 2030s, including Mercury-P.