There are physical bodies, physical worlds that astronauts could visit, that we haven't found yet. Especially, there's these close approaches of asteroids.… — Carrie Nugent Copy Share Image
The digital and physical worlds are starting to come together more seamlessly - it's only the tip of the iceberg in terms… — Mark Parker Copy Share Image
Beyond this world, beyond other worlds, be they inter-dimensional worlds or physical worlds, there is something else, which is the vast unknown… — Frederick Lenz Copy Share Image
