It is also instructive to view the subject of the age of the earth by examining material that sheds light on the probable age of our solar system.  For instance, the distance between the earth and the sun is quite a delicate matter.  The sun is shrinking at the rate of about 5 feet per hour.   Going back only a million years would place its surface close enough to earth to make life impossible here.  How is it then that the age of the earth is routinely taught to be over 4 billion years with life claimed to have been present much more than 1 million years ago?

The rings of Saturn present another interesting problem for an old earth.  The rings are being degraded by meteoroids.  If the earth were 4 billion years old there should be no rings visible now since their rate of dispersion gives them a life of about 10,000 years.

Small particles orbiting our sun should have been blown out of the solar system by the solar wind if the solar system were billions of years old.  The presence of these small particles suggests a much younger age.

For larger particles orbiting the sun the opposite is true.  The sun's rays striking those particles tends to slow them down.  Eventually they are pulled into the sun.  Yet a cloud of such particles is observed to be orbiting the sun.  Its proximity to the sun and the absence of a source of replacement particles suggests that our solar system is probably less than 10,000 years old.

Then there is the depth of moon dust.  Before we landed there in 1969, scientists were very concerned that the dust would be very deep, necessitating the design of the lunar landing module to include large dish shaped feet on the legs.  Neil Armstrong's giant step was from a ladder that ended about 3 feet above the lunar surface.  This design was based on a multi-billion year old moon which would have had time to accumulate several feet of cosmic dust.  The astronauts found only about 1 centimeter of dust on the moon, most of which was lunar in origin, not cosmic as was supposed prior to landing.  All lunar landings encountered the same depth of dust.  The moon cannot be billions of years old.