For me, science is already fantastical enough. Unlocking the secrets of nature with fundamental physics or cosmology or astrobiology leads you into a wonderland compared with which beliefs in things like alien abductions pale into insignificance.
I usually write away from home, in coffee shops, on trains, on planes, in friends' houses. I like places where there's stuff going on that you can lift your eyes, see something interesting, overhear a conversation.

