By Royal Observatory Greenwich, May, Collins Astronomy
By Moore, CBE DSc FRAS Sir Patrick
By James S. Trefil
By Andrew Chaikin, Chaikin, Andrew
By Tom Wolfe
By National Audubon Society
By Professor Brian Cox, Andrew Cohen, Cox, Professor Brian, Cohen, Andrew
By Giles Sparrow
By Martin Rees
By Cox, Professor Brian, Cohen, Andrew
By Professor A. Roger Ekirch
By Carl Sagan
By Peter Bond, Harrison Schmitt
By Duncan G. Steel
By Pirani, Felix
By Michael Hoskin (, Fellow of Churchill College, Cambridge)
By Levin, Janna
By Sobel, Dava
By Ian Nicolson
By George Musser
By Dr. Kelly Weinersmith, Zach Weinersmith
By Ridpath, Ian
By Yan Ridpat, Ian Ridpath
By Neil Bone