WEDNESDAY, JUNE 20
7:30 p.m.
Central Iowa Sierra Program next week

"The Disappearing Night"

David Oesper, amateur astronomer and outdoor lighting specialist, will speak
on the topic of light pollution.

Grace United Methodist Church, 37th and Cottage Grove in Des Moines.
223-5047 or [log in to unmask] for details.

From light trespass, to fewer stars at night, to wasted energy, to adverse
effects on flora and fauna, "light pollution" is a topic that is beginning
to receive some serious attention.

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