ICE ON THE MOON
If rocky Asteroids and meteorites can hit the Moon, so can comets.
But a comet would have a different effect from an asteroid because comets are extremely rich in water. The impact of a large comet would, like any asteroid, create a big crater. But it would also give the Moon a tenuous and temporary atmosphere loaded with water vapor.
The Sun's heat would drive most.ofthe water vapor off into space, after, a few weeks, but any that drifted near the lunar poles could possibly condense into ice especially in those extremely cold areas of the Moon that remain untouched by sunlight. The craters in these''regions" could retain ice for millions of years.
Recently, scientists using the
Clementine spacecraft believe they may have found evidence for ice just under the surface near the Moon's south pole.
If confirmed, ice could provide resources for a new generation of lunar explorers.