Aes Sedai travelled to other stars and planets during the Age of Legends. This has been stated by the Forsaken and confirmed by RJ.

RJ also said that you could Travel directly to other planets through gateways made by circles of channelers. An all female circle would be strong enough to reach Mars and other planets in the solar system.

And a mixed gender circle could reach other solar systems.

Now, in the early years of the Breaking there would have been an opportunity to gather some of the as yet untainted males, and even in later years, some of those males that took refuge in Stedding, and form a mixed circle powerful enough to reach the extra solar colonies that must have been established during the Age of Legends.

Considering that the Earth was being cracked like an egg and that humanity was being wiped out to the point of extinction, it would have been the logical course of action to try and flee with as many refugees as possible to worlds untouched by the Breaking.

If so, I wonder if the Aes Sedai who escaped to these worlds prospered and rebuilt an Age of Legends civilization. And if so, I wonder if over the course of the last 3 thousand years they might not have been tempted to visit the Earth again to see what was left of it.

It would be an interesting development to see Age of Legends level Aes Sedai open a gateway to Caemlyn and make contact with their barbarian cousins from the Third Age.