The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
British astrophysicist and writer known for his work on stellar evolution and the steady state theory, his support for the theory of panspermia, and his science fiction novels. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.