Lunar Inert Gases	Inert gases (e.g. Argon-36 and Krypton-84) are present in amounts that would only take from 1,000 to 10,000 years to accrue from the solar wind.
Moon Radioactive Dust	Solar radiation reduces the moon rocks to dust (about .0004 inches per year). Billions of years would have produced a layer of dust several miles deep. (This was the big worry with NASA before the 1st lunar landing. This was the reason why the Lunar Module had large pods on the landing legs.) When the Eagle landed on the moon, they found only 1/8 inch of dust.
Moon Radiation	Apollo moon samples were high in radioactivity. Millions of years ago, it would have been molten from the heat. But the moon is cool. The moon must be young
Short lived Lunar Isotopes	U-236 and TH-230 would be gone if the moon's age was great, but they are abundant. This is conclusive evidences of the moon's age in thousands of years, not millions.
Hot Moon	The interior of our moon is hot. It hasn't cooled of yet. Must be a young moon.
Jupiter and Saturn	These planets radiate more than twice the heat they receive from the sun, probably due to cooling (not radiation or gravity). They must be so young that they have not yet cooled off. An infinitely old universe would be at heat equilibrium.
Magic Rings	Saturn's rings cold not be formed from disintegration of former satellite or capture of external matter. The particles are too small and evenly distributed thru an orbit that is too circular.
Young Rings	The rings orbiting Saturn, Uranus, Jupiter and Neptune are bombarded by meteorites at high rate. Therefore, they should have been pulverized and dispersed in about 10,000 years. They must me young?
Comet Decay	Comets looses mass each time they orbit the sun. There are no know source for producing new comets. In fact, planetary gravity tend to expel comets from the solar system. If we perform back calculations, we can predict that just hundreds of thousands of years ago, comets would have been bigger than the sun and the sun would therefore orbit the comets.
Icy Comets	Satellite photos show tiny ice-filled comets striking the earth's upper atmosphere about 1 every 3 seconds. This literally adds tons of water to our atmosphere every year. If the earth's age was old then the oceans would be may times greater. (The rate of comet strikes would have been greater in the past.)
Solar Winds	The sun's radiation pushes small particles (less than .000001 cm in diameter) out from the solar system, yet they are still plentiful. The sun must be young.