@nyrath@michaelgemar@swope
I can't remember who the author was, but his (or her?) version of the transporter was non-destructive of the original and made a copy instead.
The drawback was that you would never know whether you would wake up safely at home or newly displaced to a terraforming crew on some far-away planet, never to come back.
This particular book IIRC featured a rogue planet flying unattached through space, that was also somehow hollow.
Ixoid