[Avodah] [Areivim] Mezuzah in Space

[Moshe Y. Gluck]

(On Areivim:)
> On Thu, January 29, 2009 10:18 pm, Moshe Y. Gluck wrote:
> : http://www.haaretz.com/hasen/spages/1059409.html

R' MB: 
> Are the concepts of mezuzos and mashkof well defined without gravity
> defining a "down"?

Well, I think we had better get some clarification on this before we send the first Israeli spaceship up. :-) Can an artificial gravity (caused, say, by a rotating spacecraft) make "down" and "up?" Alternatively, AIUI, a spacecraft that is orbiting a planet is still under the influence of that planet's gravitational pull, even if weightlessness reigns inside. Maybe "Down" in that case would be towards the planet it is orbiting.

KT,
MYG