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

4.7 (770)

4.7 stars from 770 reviews. Top 92% of Nonfiction books we track.

292 pages~4.9 hr readPublished by Ballantine BooksPublished 1997-01-01

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Last checked: Jul 8, 2026

Price history: $2.99 $14.99

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Fans of these authors will like this...

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Fans of these books will like this...

  • Cosmos
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Perfect for you if...

  • You're curious about big questions: where we came from, where we're going, and what it all means.
  • You want science explained with wonder and clarity, not arrogance or jargon.
  • You appreciate thoughtful essays that move between cosmos and conscience, cosmos and human need.

Maybe not for you if...

  • You prefer narrative momentum to reflective ideas; these essays are contemplative, not plot-driven.
  • You're looking for technical scientific detail rather than accessible philosophical inquiry.
  • You're uncomfortable with discussions about mortality, loss of faith, or how to live meaningfully.

About this book

NEW YORK TIMES BESTSELLER • In the final book of his astonishing career, Carl Sagan brilliantly examines the burning questions of our lives, our world, and the universe around us. These luminous, entertaining essays travel both the vastness of the cosmos and the intimacy of the human mind, posing such fascinating questions as how did the universe originate and how will it end, and how can we meld science and compassion to meet the challenges of the coming century? Here, too, is a rare, private glimpse of Sagan’s thoughts about love, death, and God as he struggled with fatal disease. Ever forward-looking and vibrant with the sparkle of his unquenchable curiosity, Billions & Billions is a testament to one of the great scientific minds of our day. Praise for Billions & Billions“[Sagan’s] writing brims with optimism, clarity and compassion.”—Ft. Lauderdale Sun-Sentinel “Sagan used the spotlight of his fame to illuminate the abyss into which stupidity, greed, and the lust for power may yet dump us. All of those interests and causes are handsomely represented in Billions & Billions.”—The Washington Post Book World “Astronomer Carl Sagan didn’t live to see the millennium, but he probably has done more than any other popular scientist to prepare us for its arrival.”—Atlanta Journal & Constitution “Billions & Billions can be interpreted as the Silent Spring for the current generation. . . . Human history includes a number of leaders with great minds who gave us theories about our universe and origins that ran contrary to religious dogma. Galileo determined that the Earth revolved around the Sun, not the other way around. Darwin challenged Creationism with his Evolution of Species. And now, Sagan has given the world its latest challenge: Billions & Billions.”—San Antonio Express-News “[Sagan’s] inspiration and boundless curiosity live on in the gift of his work.”—Seattle Times & Post-Intelligencer “Couldn’t stay awake in your high school science classes? This book can help fill in the holes. Acclaimed scientist Carl Sagan combines his logic and knowledge with wit and humor to make a potentially dry subject enjoyable to read.”—The Dallas Morning News Read more

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Free$7.50$14.99Apr '20Dec '22Apr '24Dec '25
$2.99$14.99

Currently on sale at $1.99 — 87% off peak. Price has dropped 20 times over the last 6 years. Goes on sale roughly every 116 days. Typically stays discounted for 55 days.

Sales Rank

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#294#256,603#512,911Apr '18Mar '24Jul '25Jun '26

Currently #4,705 in the Kindle store — a top-10K bestseller. Climbing the charts — 38% improvement recently.

Rating & Reviews

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4.0★4.5★5.0★May '23Feb '24Dec '24Jun '26RatingReviews

Currently 4.7★ from 770 reviews

Gaining approximately 5 new reviews per month. Rating has remained stable at 4.7 over the tracking period.

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Free$7.50$14.99Apr '20Dec '22Apr '24Dec '25PredictedJul '26

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This book is currently discounted at $1.99. It typically returns to around $14.99.

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