At Least One Of Us Is

 The moon is younger than previously thought:

Moon Younger Than Previously Thought

Posted by samzenpus on Wednesday August 17, @07:20PM 
from the not-a-day-over-4-billion dept.

TaeKwonDood writes"Analysis of a piece of lunar rock brought back to Earth by the Apollo 16 mission in 1972 has shown that the Moon may be much younger than previously believed. Researchers say that the findings allow for one of two possibilities:the moon is 200 million years younger than previously thought, or the theory that the moon use to be a molten ocean is wrong."