DarkSky DC asks residents and businesses within the District of Columbia to turn off unneeded outdoor lights from August 15 to November 15 between 10 p.m. and 6 a.m. for the sake of migrating birds, human health, and the planet.

Residents of Wards 7 and 8 are exposed to more potentially harmful outdoor nighttime light than those who live elsewhere in the District of Columbia, according to a new report on D.C.'s LED street light conversion project from DarkSky DC.

DarkSky DC is glad to announce the winners of our 2026 Bad Lighting Photo Contest.

Ruskin will discuss DarkSky’s concerns regarding the overpopulation of space with commercial satellites that endanger our night sky.

Win a cash prize up to $300 for your picture of light pollution in Washington DC!

DarkSky DC is proud to share our first quarterly newsletter for our members and friends. We summarize what our chapter has been doing and what is on our horizon.

DarkSky DC testified before the National Capital Planning Commission, urging that a new lighting plan for Union Station should align with responsible lighting practices.

Union Station is getting a lighting upgrade — now let’s make sure it protects our night sky! Learn how to share your voice at an upcoming meeting that invites public comments.

33 groups are calling on the DC Council to amend the RFK stadium legislation when it votes on September 17, so that commitments to support the community – especially in housing, environment, community benefits and green space – are fully reflected and guaranteed in the final legislation.

DarkSky DC reached hundreds of people through our Sept 6 outreach events.

Join us at these two great local events.

The stunning images are a call to action to protect the night.