Board Thread:Series Discussion/@comment-4738647-20150321163122/@comment-178.191.64.125-20150330130745

Are you referring to the chamber with the rectangular stones which "teleported" her to mars so she could talk to her grandfather?

That is called an "Audience Chamber", a device which projects a holographic image (and your 5 senses) onto mars, allowing you to move your holographic image around as if you were actually there. Every landing castle is equipped with one of those. It is unknown whether you need the Aldnoah activation factor to use it, since Slaine, who used it in season 1 already had the activation factor at that point (though he didn't know it yet)