By Flegg, Jim
By Emsley, John
By Asimov, Isaac
By Adler, Charles L.
By Swartz, Clifford
By Veltman, M. G., Martinus
By Rosenberg, Alex
By Atkins, Peter
By Hesketh, Gavin
By Stewart, Professor Ian
By Gribbin, John, Mary
By Helen R. Quinn, Yossi Nir
By Highfield, Roger
By Helen Arney, Steve Mould
By Fara, Patricia
By Weinstein, Lawrence, Adam, John A.
By Dee, Tim
By Ewing Duncan, David, David Ewing Duncan
By Rucker, Rudy Von B
By Krantz, Steven
By Gibilisco, Stan
By Sautoy, Marcus du, Marcus Du Sautoy
By Olsen, Lars-Henrik, Sunesen, Jakob, Pedersen, Bente Vita
By Higgins, Peter
By Gooders, John
By Royal Observatory Greenwich, Collins Astronomy
By Häusler, T., Häusler, Thomas
By Adhami, Mundher
By Bear, John, Ezell, Allen