http://www.2810.gr/index.php/news-texnologia-epistimi/36511-gigantiaia-mayri-trypa-ston-ilio-katagrafei-tileskopio-tis-nasa-video
http://www.youmagazine.gr/wordpress/2012/03/solar-black-hole-anomaly/
http://el.wikipedia.org/wiki/%CE%9C%CE%B1%CF%8D%CF%81%CE%B7_%CF%84%CF%81%CF%8D%CF%80%CE%B1
http://el.wikipedia.org/wiki/%CE%9C%CE%B1%CF%8D%CF%81%CE%B7_%CF%84%CF%81%CF%8D%CF%80%CE%B1#/media/File:Black_hole_lensing_web.gif
