Lunar dust

An embarassingly common creationist argument is that there's not enough dust on the moon for an old universe. It also has a place among proponents of the Moon landing hoax.

Creationist disowning
First, this argument is so bad that creationists themselves have argued against it. CreationWiki, not known for abandoning arguments, wrote in 2013:

The minimal quantify [sic] of dust on the moon was once used by young earth creationist [sic] as supporting evidence for a young moon. It was argued that based on current measurements of cosmic dust and its estimated rate of accumulation, the moon must be very young. It was also said that before the moon landings, there was considerable fear that astronauts would sink in the dust. The first recorded use of the argument was by Harold Slusher in an article published by the Creation Research Society in 1971. Henry Morris likewise published the moon dust assertion in his book Scientific Creationism in 1974.

However, most creationists now recognize the argument to be outdate [sic] and advice  [sic] against it  [sic] use.

AIG, back in 2004, wrote:

For years, a common and apparently valid argument for a recent creation was to use uniformitarian assumptions to argue that the amount of dust on the moon was less than 10,000 years’ worth. [....] The moon-dust argument was easy to understand and explain. Nevertheless, as we have indicated before, creationists as well as evolutionists need to be prepared to re-examine arguments as new and better data emerges.

And an extremely long 1993 article by Dr. Andrew Snelling and David Rush, published by AIG and republished by CMI and ICR, wrote:

Thus, even 0 years ago, this argument was proven to be false by creationists themselves. Yet creationists still make it today!

Note also the usage of "evolutionists" to refer to selenologists. Astronomy and geology have nothing to see with evolution in the biological sense.

Debunking
Numerous creationists assert that there's too much dust on the moon.

Henry Morris (father of modern creationism) wrote in 1974:

Kent Hovind said in 1994:

Pathlights, in 2016, maintains:

These claims are wrong.

Dust accumulation
The number for dust accumulation (either called 15, 14.3, or 14 million tons per year on Earth) is the maximum estimate by Hans Pettersson; his more realistic estimate was 5 million tons, and he warned readers that the real rate may be far lower. The improper citation suggests a lack of honesty from creationists. Most importantly, Pettersson's research was done in 1960 (0 years ago yet cited today), with very basic techniques (standing on two mountaintops and collecting dust with a device intended for measuring smog levels), and has been superceded by more recent research.

More recent studies put the figure at between a minimum of 1.6 x 10^9 grams/year (1763 short tons/year ) and a maximum of 1.7 x 10^11 grams/year (187,392 short tons/year ), both of which are orders of magnitude less than creationists' figures from Pettersson. Even at this maximum value, and even assuming that Earth is perfectly flat, and even assuming that the dust would not compress at all, only 66.18 cm (0.6618 m, 2.171 ft) of dust would have accumulated after 4.5 billion years. This is vastly outpaced by erosion and other factors, which would easily swallow this minute change.

There is no reason why the influx density should be any greater on the moon (and, indeed, one would expect it to be less (about 75% so), as the Moon has less gravity to attract dust).

Ignored factors
The surface of the moon is also often hit by larger meteorites and asteroids which turns over the regolith layer (a loose layer of heterogeneous rocks and grains which is several meters thick and covers the surface of the moon) and mixes the dust into it.

This claim also fails to take into account the phenomenon of, in which small objects in a hard vacuum (such as dust on the surface of the Moon) naturally solidify. This effect was reported to be a problem with the first American and Soviet satellites, as small moving parts would seize together.

Moon landing story
The story that scientists worried about astronauts sinking in moon dust is a total fabrication. As Don Lindsay reports:

Indeed, McCracken and Dublin wrote: