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Tau Zero

Tau Zero by Poul Anderson

by Poul Anderson

Shares rank 80 of 179 science fiction novels by recommenders

Recommended as one of the best sci-fi novels, about a spaceship doomed to accelerate at 1G, and loved by readers for decades.

Recommended as one of the best sci-fi novels, about a spaceship doomed to accelerate at 1G, and loved by readers for decades.

6 people gave an opinion

recommend it
6
criticize it
0
approval share
100%
Each figure is one person. RecommendsCriticizes

Recommended in 4 of 13 months

  1. November 2025: recommended
  2. December 2025: recommended
  3. January 2026: not recommended
  4. February 2026: recommended
  5. March 2026: not recommended
  6. April 2026: not recommended
  7. May 2026: not recommended
  8. June 2026: not recommended
  9. July 2026: not recommended
  10. August 2026: not recommended
  11. September 2026: recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 6 people recommend itNeeds 10 or more, not met.
  • Nobody criticizes itNeeds 2 to 1 or better, met.
  • Recommended in 4 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • One of the best sci-fi novels

    “It's one of the best sci-fi novels of all time, read it!”

    Comment from 8 Feb 2026 in “Where did all the starships go?”
  • Great story about endless 1G acceleration

    “It's a great little sci fi novel about a spaceship doomed to accelerate at 1G indefinitely.”

    Comment from 7 Nov 2025 in “Analysis indicates that the universe’s expansion is not accelerating”
  • Loved for over forty years

    “I love Tau Zero - I first read it over 40 years ago”

    Comment from 7 Feb 2026 in “Where did all the starships go?”

Other science fiction novels people recommend

The four most recommended other science fiction novels, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Tau Zero by Poul Anderson compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Project Hail Maryby Andy Weir1172483%12—Approved
There Is No Antimemetics Divisionby qntm983474%91.5 yrs6 ownersApproved
Blindsightby Peter Watts962778%12—Approved
Duneby Frank Herbert822577%12—Approved
Tau Zeroby Poul AndersonThis page60100%4——
See all 179 science fiction novels, ranked

What people said

4 of the 6 comments that mention it, newest first. Each links to the original comment.

“It's one of the best sci-fi novels of all time, read it!”

RecommendsComment from 8 Feb 2026 in “Where did all the starships go?”

“I love Tau Zero - I first read it over 40 years ago”

RecommendsComment from 7 Feb 2026 in “Where did all the starships go?”

“Other books I enjoyed reading this year in no particular order”

RecommendsComment from 26 Dec 2025 in “Ask HN: What did you read in 2025?”

“It's a great little sci fi novel about a spaceship doomed to accelerate at 1G indefinitely.”

RecommendsComment from 7 Nov 2025 in “Analysis indicates that the universe’s expansion is not accelerating”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.