was not reached for Russian co-operation in the European Space Agency's ExoMars program. However, since an agreement was reached for the inclusion of Russia as a full project partner, some instruments originally developed for Fobos-Grunt were flown in the ExoMars Trace Gas Orbiter. On 2 August 2014, the Russian Academy of Sciences stated that the Phobos-Grunt repeat mission might be restarted for a launch approximately in 2024. In August 2015, the ESA-Roscosmos working group on post-ExoMars cooperation, completed a joint study for a possible future Phobos sample return mission, preliminary discussions were held, and in May 2015 the Russian Academy of Sciences submitted a budget proposal. Roscosmos is also currently studying a proposal for an international Mars sample return mission called Mars-Grunt, to take place by 2026. This Mars sample-return mission would be developed from the technologies demonstrated by Fobos-Grunt 2. Objectives Fobos-Grunt was an intended interplanetary probe that included a lander to study Phobos and a sample return vehicle to return a sample of about of soil to Earth. It was also to study Mars from orbit, including its atmosphere and dust storms, plasma and radiation. Science goals Delivery of samples of Phobos soil to Earth for scientific research of Phobos, Mars and Martian vicinity; In situ and remote studies of Phobos (to include analysis of soil samples); Monitoring the atmospheric behavior of Mars, including the dynamics of dust storms; Studies of the vicinity of Mars, including its radiation environment, plasma and dust; Study of the origin of the Martian moons and their relation to Mars; Study of the role played by asteroid impacts in the formation of terrestrial planets; Search for possible past or present life (biosignatures); Study of the impact of a three-year interplanetary round-trip journey on extremophile microorganisms in a small sealed capsule (LIFE experiment). Payload TV system for navigation and guidance (TSNN) Gas Analysis Package: Thermal Differential Analyzer (TDA) Gas-Chromatograph (KhMS-1F) Mass-Spectrometer (MAL-1F) Gamma ray spectrometer (FOGS) Neutron spectrometer (KhEND) Laser Time-of-Flight Mass Spectrometer (LAZMA) Mössbauer Spectrometer (MIMOS-II) Thermal Detector (TERMO-FOB) Fourier Spectrometer (AOST) Echelle Spectrometer (TIMM) Seismogravimeter (GRAS-F) Seismometer (SEISMO) Long-wave radar (DPR) Visible and near-infrared microscopes (MicrOmega) Dust counter (Meteor-F) Dosimeter (Liulin-F) Secondary Ion Mass Spectrometer (MANAGA-F) Optical solar & star sensor (LIBRATsIYa) Plasma Complex (FPMS) Fluxgate magnetometer (DFM) Inductive magnetic sensor (KVD) Ion mass spectrometer (DIM) Ion mass spectrometer (DI) Ultrastable Oscillator (USO1) Ionospheric parameters experiment together with Yinghuo-1 (YH-1) spacecraft (MROE)