Which one is best aligned with Mecca?
Religious practices for the astronaut is pretty interesting.
Fasting from Sunrise to Sunset, for instance, or how to kneel in zero gravity.
An article about Catholicism and astronauts..
http://nineteensixty-four.blogspot.com/2015/03/catholicism-in-space-houston-do-we-have.html?m=1
Muzzie issues, like facing Mecca while orbiting.
http://www.wired.com/2007/09/mecca-in-orbit/