International Dark Sky Week has grown to become a worldwide event and a key component
of Global Astronomy Month. Each year it is held in April around Earth Day and Astronomy Day.
This year celebrations begin Sunday, April 20, and run through Friday, April 26.
International Dark Sky Week draws attention to the problems associated with light pollution
and promotes simple solutions available to mitigate it.
International Dark Sky Week is an initiative of the International Dark Sky Association (IDA).
Go here to read more about this organization.