Any history of motorised transport will mention electric and steam-powered vehicles.
There's the opening lines of the old folk song "He's Been on the Job Too Long":
"Well its twinkle, twinkle little star
And along comes Brady in his 'lectric car..."
Most of the people posting here can barely chew gum and tie their shoes at the same time.
Ooh, we can too.
If you believe in god, why would the existence of aliens prove that god doesn't exist?
I gather this is a problem for Christianity. The Incarnation was supposed to only happen once. But if beings exist on other planets, Jesus would have had to appear to them as well, and go throught the whole resurrection thing again.