The planetarium show “Exoplanets: Redux” comes to the Edwin E. Ritchie Observatory at Battle Point Park at 8:30 p.m. Saturday, July 12.

Join astronomer Steve Ruhl as he examines the worlds outside our solar system – exoplanets. How do we see them, what do exoplanets tell us about our solar system and are there other habitable worlds out there?

If the sky is clear, astronomers will be on hand with telescopes for public solar viewing prior and star-gazing afterward.

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

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 or visit www.bpastro.org.