A lunar zenith telescope can be made cheaply with ionic liquid. It is relatively nearby astronomical seeing is not a concern certain craters near the poles are permanently dark and cold, and thus especially useful for infrared telescopes and radio telescopes on the far side would be shielded from the radio chatter of Earth. The lunar soil, although it poses a problem for any moving parts of telescopes, can be mixed with carbon nanotubes and epoxies in the construction of mirrors up to 50 meters in diameter.

Building observatory facilities on the Moon from lunar materials allows many of the benefits of space based facilities without the need to launch these into space.

While some Earth-crosser asteroids occasionally pass closer, the Moon's distance is consistently within a small range close to 384,400 km. In addition, the Moon is the closest large body in the Solar System to Earth. Whether the Moon's gravity (roughly one sixth of Earth's) is adequate for this purpose is uncertain. Furthermore, the Moon does have some gravity, which experience to date indicates may be vital for fetal development and long-term human health. Others have proposed momentum exchange tethers (see below). Some proposals include using electric acceleration devices ( mass drivers) to propel objects off the Moon without building rockets. Rockets launched from the Moon would require less locally produced propellant than rockets launched from Earth. This could allow the Moon to serve as a source of construction materials within cis-lunar space. The energy required to send objects from the Moon to space is much less than from Earth to space. Setting up structures on a natural body would provide ample sources of material for their construction, particularly for purposes such as shielding from cosmic radiation. We discussed these results referring to research on the consequences of long-term social isolation in extreme human expeditions and social psychological models of social isolation.Eagle on the Tranquility Base on JAdvantages, disadvantages, problems and potential solutions Finally, engaging in leisure activities increased the perceived speed of time. Talking about personal matters and leisure time were associated with a decrease in resignation, whereas talking about personal topics and physical exercising increased the desire for social contact. Moreover, the protective role of specific daily activities emerged.

First, our results showed that, for either space architect, desire for social contact increased over time, whereas feelings of resignation did not. The two crew members independently filled out a time-based diary with self-report measures on their daily activities and negative emotions, feelings of loneliness, resignation, desire for social contact, and time perception. Two space architects took part in a 61-day mission in Northern Greenland to simulate human life conditions in the habitat as a prototype of a human settlement on the Moon. This study focuses on the relationship between time spent in specific activities (e.g., talking about personal matters) and the social-psychological effects of social isolation and confinement as a part of the LUNARK project, which was aimed at building and testing the first Moon analog habitat. Social isolation is among one of the best-known risk factors in these environments. Knowledge about the social-psychological aspects of individuals' experiences of confinement within habitats in space missions or extreme environments is also rapidly expanding. Research to address the technical challenges of human missions into space is growing.

Lunark habitat