Nicole Kidman, Keith Urban

TORRES/bauergriffin.com

Star Magazine reported that during a recent trip to Vegas, Nicole Kidman and Keith Urban took a zero-gravity flight.  There's something called Zero-G planes and they fly in arcs to make passengers feel weightless. 

Oddly, Keith was the one who was reportedly nervous about the flight, but Nicole said she's always wanted to "float around like an astronaut."  So, I guess she was excited…but who knows.