- Canadian Space Agency: http://www.asc-csa.gc.ca/eng/default.asp
- Carl Sagan: http://www.carlsagan.com
- David Suzuki Foundation: http://www.davidsuzuki.org
- Discovery Channel: http://www.discovery.ca
- NASA: http://www.nasa.gov
- SETI (Search For Extreterrestrial Intelligence): http://www.seti.org