PSR (permanently shadowed regions)

Permanently shadowed regions (PSRs) are areas on celestial bodies, like the Moon or Mercury, where sunlight never reaches due to the unique angles of their surfaces. These regions are usually found in deep craters or on polar areas, where the Sun’s rays never penetrate. As a result, PSRs can contain extremely low temperatures and may host valuable resources, such as water ice. Understanding PSRs is important for future exploration and possible colonization, as they could provide essential resources for scientists and astronauts.