"Space Tourism: Face Time with Earth", Leonard David, Senior Space Writer, SPACE.com, 2006-08-05, webpage: Space-ecotourism. În februarie 2013, un film de scurt metraj a companiei de productie britanice Planetary Collective a atins peste un milion de vizualizari pe website-ul Vimeo.
universetoday.com
"The Human Brain in Space: Euphoria and the “Overview Effect”
Experienced by Astronauts", Ian O'Neill,
Universe Today, 2008-05-22, webpage:
UToday-522.