Newspapers, Journals, Publishing companies
Birkhäuser: Astronomie Neuerscheinungen
Encyclopedia Astronautica
FLORIDA TODAY Space Online
Planet Aerospace Magazin
Spaceflight online
Spektrum der Wissenschaft
StarObserver
Sterne und Weltraum
Museums
Air Force Space and Missile Museum
Cape Canaveral Air Force Station Virtual Tour
Air and Space Museum, Washington D.C.
Air and Space Museum – Steven F. Udvar-Hazy Center, VA