'It's believed the Earth is over 4.5 billion yrs. old, based on 4.6 billion yr. old rocks found on this neighbor'
the Moon
THE EARTH: Its believed the Earth is over 4.5 billion yrs. old, based on 4.6 billion yr. old rocks found on this neighbor
It's believed the Earth is over 4.5 billion yrs. old, based on 4.6 billion yr. old rocks found on this neighbor
It's believed the Earth is over 4.5 billion yrs. old, based on 4.6 billion yr. old rocks found on this neighbor
THE EARTH
the Moon
THE EARTH