By Royal Observatory Greenwich, Collins Astronomy
By Häusler, T., Häusler, Thomas
By Adhami, Mundher
By Bear, John, Ezell, Allen
By Lambda Educational Technologies Ltd.
By Wolpert, Lewis
By Green, Professor Lucie
By Wood, Carlton, Habgood, Nicolette
By Cadbury, Deborah
By Charles Darwin, Gillian Beer
By Ryall, R. W., Kelly, J.S.
By Azaroff, Leonid V
By Lopez, Barry
By Rob Eastaway
By Stewart, Paul D., Richard Dawkins
By Arnold
By Koshy, Valsa
By Dudley, Underwood
By Jellis, Rosemary
By Hugo, Nancy Ross, Llewellyn, Robert J.
By Felix, Jiri
By Julius, Edward H.
By Challoner, J
By O'Meara, Stephen James
By Hogben, Lancelot
By Saini, Angela
By Singh, Simon