the earth, the sun, and the solar system are roughly 5 billion years old. how old was the universe when the earth formed, assuming that your "best...

the earth, the sun, and the solar system are roughly 5 billion years old. how old was the universe when the earth formed, assuming that your "best fit" value for Hubble time (0.013) is a reasonable approximation of the age of the universe? compared to the approximate age of the universe, is this close to the beginning of the universe, roughly halfway through, or close to the present day?