NASA is looking to pay US citizens to spend eight months in social isolation inside a Russian laboratory. The goal is to simulate the longterm social distancing that astronauts will endure on future missions to Mars. The location is "a unique multi-compartment facility used as an analog for isolation, confinement, and remote conditions" located in the Russian Academy of Science's Institute of Biomedical Problems in Moscow. From NASA's announcement of the opportunity:
NASA is looking for highly motivated U.S. citizens who are 30-55 years old and are proficient in both Russian and English languages. Requirements are: M.S., PhD., M.D. or completion of military officer training. Participants with a Bachelor's degree and other certain qualifications (e.g., relevant additional education, military, or professional experience) may be acceptable candidates as well.
Participants will experience environmental aspects similar to those astronauts are expected to experience on future missions to Mars. A small international crew will live together in isolation for eight months conducting scientific research, using virtual reality and performing robotic operations among a number of other tasks during the lunar mission. The research will be conducted to study the effects of isolation and confinement as participants work to successfully complete their simulated space mission. Results from ground-based missions like this help NASA prepare for the real-life challenges of space exploration and provide important scientific data to solve some of these problems and to develop countermeasures.
Compensation is available for participating in the mission. There are different levels of compensation depending upon whether or not you are associated with NASA or if you are a NASA employee or contractor.
NASA refers to these experiments as Analog Missions,, described as "a situation on Earth that produces effects on the body similar to those experienced in space, physical, mental and emotional."