Carl Sagan describes the terrible conditions of Venus using the information of the Soviet Venera probes. Carl Edward Sagan (November 9, 1934 – December 20 .\r<br>\r<br>NEXT: Sure getting to Venus or even Mars is easy. But what about the outer planets which we exponentially further away? Find out.\r<br>\r<br>Venera 7, 8, 9, 10, 13, 14, 15, 16 and American probe Magellan.
