Beyond International Astronautics Federation

http://www.astronomy2009.org/

 

International Astronautics Federation

http://www.iafastro.org/

 

Astronomers Without Borders

http://www.astronomerswithoutborders.org/

 

The world at night

http://www.twanight.org/newTWAN/index.asp

 

International Astronomical Union

http://www.iau.org/

 

The Portal to the Universe

http://www.portaltotheuniverse.org/

 

Project Hessdalen

http://www.hessdalen.org/index_e.shtml

 

Hessdalen Science Camp

http://www.sciencecamp.no/

 

CNES/GEIPAN

http://www.cnes-geipan.fr/

 

UFODATA (UFO Detection and TrAcking), [ Addition October 2015]

http://www.ufodata.net/