[ It's not the same sky he's used to, and by now he's more than a little aware that it's not real at all, at least not in any significant way. He still finds a way to enjoy it, the ease of dipping into his thoughts while gazing at the stars floating in inky black and purple sky always comforting.

When he's spoken to, he turns his head and blinks, listening for a moment before his lips curl up into a smile. ]

Not usually. Some of them are kind of similar to ones I've read about though.

[ He lifts a prosthetic hand to point towards one, tracing the shape of it with motion. ]

That one looks like Cancer. The crab that battled with the Hydra against Heracles.