Why don't we examine some of the references to Gehenna in the new testament. Are these quotes all simply figurative? Mathew has many references to hell (Gehenna.) Are the following referring to the "the valley of the sons of Hinnom" literally or figuratively.
here's one reference, Mathew 10:28
Do not be afraid of those who kill the body but cannot kill the soul. Rather, be afraid of the One who can destroy both soul and body in hell.(Gehenna.)
Do you think that we're being warned of literally being thrown into the valley of the sons of Hinnom, or is this descriptive terminology of some other place? Gehenna in the literal translation the valley of the sons of Hinnom is not a place where your soul dies. Apparently, the reference is to some place other than the literal valley.
There are many more references to a place translated from Gehenna as hell, and they don't reference the litteral the valley of the sons of Hinnom.
Mathew and Mark both refer to Hell (Gehenna) as a place where the fire never goes out.
Be these and the other references, hell (Gehenna) is not the valley of the sons of Hinnom, nor is it an earthly place. It's not likely another planet, it's most likely different plane of existence, an alternate universe.