International Dark Sky Week 20-26 April 2014.

[Explorer79]

http://www.darksky.org/int-l-dark-sky-week-main

 

http://earthsky.org/science-wire/7-ways-to-celebrate-international-dark-sky-week

 

http://astronomerswithoutborders.org/gam2013/programs/1297-international-dark-sky-week.html

 

http://www.darkskiesawareness.org/

 

 

http://darkskydiary.wordpress.com/2014/04/20/international-dark-sky-week-20-26-april/