determining the direction of a rigidbody

I had a look through the search but I didn’t find anything similar, although I expect this has been answered before.
I’m a bit of a scripting noob so bare with me.
Basicly what I have is a man in a space suit moving in zero G. I have all the controls to move the ridibody around space and they’re working fine. But to make navigation a bit easier I need a crosshair or a point on my HUD to show the player the direction the rigidbody it travelling. Like in Frontier:first encounters if you’ve ever played it.
So basically I need some way of finding the direction the rigidbody is moving in global space and due to my noobish nature have not been able to find it on my own.

rigidbody.velocity

–Eric

really?
Man,after searching around on the forums I just assumed it was more complex.
Cheers.