Who is Aunt and Uncles from Cosmicomics and what is their importance?

Aunt and Uncles appear in the story, At Daybreak. Qfwfq's aunt and two uncles are visiting when the solar system's matter starts to solidify. The group leaves in the midst of the transformation, and Qfwfq later hears them making their way through new and unknown things, getting separated from each other as they go.