Nuclear Power Balls

I agree with you. Nuclear power has gained a lot of importance in the past few years and it will hopefully continue. Similar support has been seen in solar and wind harnessing technologies along with the concept of a smarter grid.
 
I on back of napkin estimated there were one space faring civilization per hundred million stars. If that is accurate, then our Milky Way Galaxy currently has space five faring civilizations right now. In five billion years or so, our galaxy is destined to “collide” with the Andromeda Galaxy, providing potential contact with another ten space faring civilizations, not accounting for extinctions or the accumulation of long surviving advanced civilizations.
What will happen to our Solar system in the aftermath of the collision?
 
What will happen to our Solar system in the aftermath of the collision?

Odds are, nothing will happen to our solar system after the Milky Way Galaxy “Collides” with the Andromeda Galaxy, as distances between solar systems within each galaxy are usually measured in light years. For comparison, the inner edge of the Oort Cloud is roughly 14 light days away, far enough away for there to be little direct effect by a passing star of average size. Indirect effects would include disturbing the orbits of asteroids and comets with the Oort Cloud, sending some into our solar system. On a large scale, gravity will distort both galaxies, eventually causing a merger between them, as indicated by other galaxies that have collided or are in the process of colliding.
 
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