As mentioned in the above article, when the Moon is near the horizon, it looks large. The lit part of the Moon is due to reflected sunlight. When the Moon is near the horizon, its reflected sunlight has to pass through more atmosphere than when it was higher. As a result, more of the shorter wavelengths (blue and green) get scattered, leaving the longer wavelengths, such as red light. (This happens at sunset, too.)
You might also see a red Moon (no matter where it is in the sky) if the atmosphere has a lot of particles, such as due to a fire, volcanic eruption, or pollution, because the particles also scatter more of the shorter wavelengths of light.
As mentioned in the above article, when the Moon is near the horizon, it looks large. The lit part of the Moon is due to reflected sunlight. When the Moon is near the horizon, its reflected sunlight has to pass through more atmosphere than when it was higher. As a result, more of the shorter wavelengths (blue and green) get scattered, leaving the longer wavelengths, such as red light. (This happens at sunset, too.)
You might also see a red Moon (no matter where it is in the sky) if the atmosphere has a lot of particles, such as due to a fire, volcanic eruption, or pollution, because the particles also scatter more of the shorter wavelengths of light.