If we are to send people, it must be for a very good reason - and with a realistic understanding that almost certainly we will lose lives. Astronauts and Cosmonauts have always understood this. Nevertheless, there has been and will be no shortage of volunteers.
Carl SaganAbout author
- Author's profession: Scientist, Physicist
- Nationality: american
- Born: November 9, 1934
- Died: December 20, 1996