Only four of the remaining 42 permitted smoking indoors, while the rest allowed patients or staff to puff away somewhere outdoors on hospital property.

The 27-foot-long silver trailer does not come with any seats, but has counters equipped with ashtrays and room enough for around 20 smokers to puff away to their heart's content.

Basking in the glow of the bright supergiant star Rigel, the Witch Head Nebula trails like a puff of smoke through the Eridanus constellation about 700 light years away.