Interacting galaxies are found all over the sky. How do these galaxies interact? What happens when they collide? Our nearest galactic neighbor is heading straight for us at 250,000 mph!

Astronomer Steve Ruhl will look at what is going to happen at the planetarium show “Galaxies Gone Wild” at 7:30 p.m. Saturday, Nov. 10 at the Edwin E. Ritchie Observatory at Battle Point Park.

Admission is free to members of the Battle Point Astronomical Association; a $2 donation is suggested for nonmembers, $5 for families.

There will also be a special kids show, “The Art of Programming,” from 4 to 6 pm with Dr. Erica Saint Clair.

If the sky is clear, astronomers will be on hand with telescopes.

The Battle Point Astronomical Association is a nonprofit amateur astronomy organization that operates the Ritchie Observatory and John H. Rudolph Planetarium in the Helix House at Battle Point Park. For more information, call 206-842-9152.