Science Friday host Ira Flatow spoke to three nuclear experts to learn more about what modern nuclear war might look like.
After today's landing, the space shuttle Discovery will retire on planet earth. To learn what may be in store for the future of our space aspirations we speak to Louis Friedman and Neil deGrasse Tyson.
The late Carl Sagan's legacy is continued by way of his son's new book about cutting-edge technologies and where science fiction has become reality.