Konstantin Tsiolkovsky
Russian and Soviet rocket scientist and pioneer of the astronautic theory (1857-1935)
Authors: cosmologist
Number of authors: 7
Paul Davies
British physicist
John D. Barrow
British scientist (1952-2020)
Carl Sagan
American astrophysicist, cosmologist and author (1934-1996)
Aristotle
Classical Greek philosopher and polymath (384-322 BC)
Steven Weinberg
American theoretical physicist (1933-2021)
Johannes Kepler
German mathematician and astronomer (1571-1630)
