Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium

"Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium" by Carl Sagan explores profound themes related to existence, science, and the future of humanity. This collection of essays reflects on the intersection of science and philosophy as Sagan contemplates life and mortality in the context of the approaching new millennium. Published by Ballantine Books, this paperback edition offers insights into Sagan's thoughts on the universe and our place within it.