“Long-term human exposure to the lunar environment has never been studied in depth, and it’s quite possible that — in addition to the many inherent dangers of living and working in space – the Moon itself may be toxic to humans,” wrote Jason Major wrote at Universe Today.
Lunar dust is not subject to the erosional processes on Earth, so the particles tend to have sharp edges. These can be compared to “pollutants encountered on Earth, such as asbestos and volcanic ash,” Major said; “lunar dust particles are small enough to penetrate deep within lung tissues, and may be made even more dangerous by their long-term exposure to proton and UV radiation.” In addition, the microgravity environment of the moon may loft these particles around the airways.
The dust is dangerous on the outside, too. Apollo astronauts noticed that the dust clings to everything. Long-term exposure to the sharp-edged particles, even in the safety of a lunar base, could cause skin abrasions, particularly on the fingers, knuckles, elbows and knees. And if the dust were to irritate or scratch the cornea of the eye, would there be an opththalmologist in the base to prevent blindness?
Even if the dust problems could be overcome, the moon remains unprotected from solar UV radiation, the solar wind, solar flares, micrometeorites and high-energy cosmic rays."
The dust is dangerous on the outside, too. Apollo astronauts noticed that the dust clings to everything. Long-term exposure to the sharp-edged particles, even in the safety of a lunar base, could cause skin abrasions, particularly on the fingers, knuckles, elbows and knees. And if the dust were to irritate or scratch the cornea of the eye, would there be an opththalmologist in the base to prevent blindness?
Even if the dust problems could be overcome, the moon remains unprotected from solar UV radiation, the solar wind, solar flares, micrometeorites and high-energy cosmic rays."
"Consider that the moon is almost exactly at the same distance from the sun as Earth. That’s why all the astrobiological optimism about extrasolar planets within habitable zones is mostly hype. The moon is in the perfect habitable zone, too! Many other factors are required to make a body habitable."
CEV
He stretcheth out the north over the empty place,
and hangeth the earth upon
nothing.
Job 26:7