The Discovery Center at Ridgefield and New Pond Farm Education Center, located at 101 Marchant Road in West Redding, are offering a public astronomy program that will celebrate the 50th anniversary of the moon landing Saturday, July 6, at 9 p.m.Attendees will view a waxing crescent Moon, the same moon configuration that NASA wanted for the lunar landing. The magnificent gas giants of Jupiter and Saturn have entered the early evening sky and will be great telescopic targets. organizers note. Participants will also view and discuss the spring and summer constellations of Hercules, Bootes, Virgo and Cygnus.Participants should park near the Education Center and bring bug repellent and a flashlight for the walk to the observatory. The program is $4 per Discovery Center member, with a maximum of $16 per family.For nonmembers, the charge is $6, with a maximum of $24 per family. Registration is required and can be done at www.ridgefielddiscovery.org) or by calling 203-482-3683. If the skies appear cloudy, check the website after 4 p.m. for program status.