One of my testicles hangs a little bit lower than the other is this normal.?

no ure an alien
No, common problem. There is a muscle around the testicle that is responsible
for retraction into the abdomen. You can produce this by scratching the inside
of your thigh next to your testicle and produce the Cremasteric Reflex(name of
the muscle). This is of no concern, your body is doing what it is supposed to
do.
Yes that is normal, otherwise they would bang against each other every time you
try to walk anywhere and that would not feel very good!
yes. It prevents them from twisting around each other. It's a puberty thing.
its normal dude. it is surposed to be like that.so when you move it does not
collide with each other.
yes, so that they will move easily over each other.
Yes. It's actually supposed to do that with every man on the planet.
yea so does mine
well, if they dont then thats abnormal