Freeman Dyson is one of the most famous names in science, and sometimes one of the most controversial. Dyson is 91 and was one of the British scientists who helped win World War II. He spent most years since as a professor of physics at the Institute for Advanced Study in Princeton, New Jersey. He has won the Max Planck Medal and the Templeton Prize, and written important, oft-quoted books including Disturbing the Universe and The Scientist as Rebel, and newspaper articles that inspire both admiration and debate.

His latest book is Dreams of Earth and Sky, a collection of essays on everything from the history of England's Royal Society to current hot button issues like climate change and information technology — including, in one essay, the possibility of bioengineering human beings the way people now breed flowers. He tells NPR's Scott Simon that there are many different reasons for that kind of project.

To read more, click here.