Download or read book Carl Sagan and Immanuel Velikovsky written by Charles Ginenthal and published by . This book was released on 1995 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Immanuel Velikovsky's unconventional theories of the origin of the solar system have generated immense interest and bitter controversy. One of his best know critics has been Dr. Carl Sagan of Cornel University.