[cashflyer]

I don't think it can be our distant past, since they showed the remains of New York City.
It can't be the wrong planet, since Gaeta confirmed the constellations.
Could it be an "alternate universe"?

Still unanswered are questions about the Viper. How did Starbuck come to be in a new Viper, and why is it picking up the signal?
Why did Starbuck say that the Cylons gave them the way to earth, when it is a Colonial beacon that the Viper is receiving?

Is Number Three honest in her claim that there are only four of the Final Five in the Fleet? If so, where is the fifth and last Cylon?