One of the rewards for doing well in the moon lottery is that the Sun is four hundred times wider than the Moon, and it happens to be four hundred times farther away. This pure coincidence renders the Sun and Moon about the same size in the sky, allowing for spectacular solar eclipses. This wasn’t always the case, nor will it be so in the distant future. The Moon is spiraling away from Earth at a rate of about 1.5 inches per year. So let’s enjoy this match made in heaven while we can.