Rosalina

Princess Rosetta, with Mario looking on, from the latest edition of the Japanese magazine Famitsu.

Princess Rosetta is a princess who will be appearing in Super Mario Galaxy. Mario will meet this princess during his adventure in space. She wears a blue dress, and looks vaguely like Peach. Nothing else is known about her. In a screenshot she is shown floating in the air with her eyes closed with a bright light in the background while Mario is looking at her.