The moon has water ice at both of its poles and potentially in permanently shadowed regions near these poles. While small amounts of liquid water vapor have been detected, there is no evidence of flowing or standing liquid water on the Moon at the present time. The temperature ranges on the Moon are quite extreme, ranging from approximately 250 degrees Fahrenheit (120 degrees Celsius) during the Moon's day to minus 280 degrees Fahrenheit (minus 173 degrees Celsius) during the Moon's night. These temperatures are too extreme for liquid water to exist on the surface of the Moon.