Ice Deposits On The Moon’s South Pole May Not All Be From The Same Time, New StudyOctober 14, 2019
Lunar surface explorations have shown that the Moon’s south pole have shown that ice deposits previously discovered may be more recent than anticipated. Researchers at Brown University have researched through the NASA Lunar Reconnaissance Orbiter which has been orbiting the moon since 2009, to figure out the age of the crater the ice was found in.
The study has noted that the number of smaller craters within the large crater helped determine the age of the craters. The pace of asteroid and comet impacts over time was available to researchers and so their theory produced convincing results. A majority of ice deposits were situated inside larger craters which were formed 3.1 billion years ago.
Evidence was found of frozen water in some small craters which seemed freshly formed. Ariel Deutsch, a researcher from Brown University, said that these findings came as a surprise.
The ice formations in different places seem to have different sources. The colder ones are estimated to have formed from water-bearing comets or asteroids, while the volcanic ones may have formed from volcanic activity that forced the water to surface. However, water-bearing comets are not in existence as far as humans know, and volcanic activity on the moon ceased a billion years ago.
The next most believable theory is that these ice deposits could be created by a bombardment of micrometeorites or solar winds. The most accurate way to find this out will be to send spacecraft to the south pole of the moon to collect samples.