Why do people say that the Earth is only about 6,000 years old? This is completely ridiculous.
First of all, there are countless celestial bodies that are more than 6,000 light-years away. For example, the Andromeda galaxy is 2.3 million light years-away. The fact that we can see the Andromeda Galaxy is proof that the universe is at least 2.3 million years old. If it was any younger, we would not be able to see it, because the light would not have reached our planet yet.
http://wiki.answers.com/Q/How_far_is_the_Andromeda_Galaxy