  This document provides recommendations to the Government of Canada and the
Canadian Space Agency in response to their call for feedback on the future of
Canadian space exploration. The report focuses on how the construction and
long-term placement of mega-constellations of satellites into Earth orbit will
affect astronomy and the view of the night sky by all peoples, with attention
to all Canadians. The broader discussion highlights several environmental
concerns associated with the construction and maintenance of these
mega-constellations. The eight recommendations here address ways that Canada
can play a role in mitigating some of these negative effects through national
and international initiatives. In drafting the recommendations, we take the
approach that space needs to be developed sustainably. In this regard, we use
the Brundtland Report's definition: "Sustainable development is the development
that meets the needs of the present without compromising the ability of future
generations to meet their own needs." Thus, all recommendations here are made
with the intent of minimizing the negative consequences of mega-constellations,
while also recognizing that their development will continue.
