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For questions about "Known Space". It is the name given to the fictional universe and setting where many of Larry Niven's most popular novels take place, including his classic Ringworld.

7 votes
1 answer
383 views

How did Ol't'ro stop Achilles' attack?

During the climactic confrontation at the end of Betrayer of Worlds: We are told that Achilles saw a bright flash when the missiles were "taken care of", and then a fast moving object showed up clo …
R. Martinho Fernandes's user avatar
24 votes
1 answer
2k views

What were the "mistakes" in the first paperback edition of Ringworld?

The dedication of The Ringworld Engineers reads If you own a first paperback edition of Ringworld, it's the one with the mistakes in it. It's worth money. What are these mistakes that were corrected …
R. Martinho Fernandes's user avatar
29 votes
5 answers
2k views

What actually happens to ships using hyperdrive in gravity wells?

This post consists basically of spoilers, so you should stop reading now if you don't want to be spoiled :) In most Known Space stories we are told that you can't use hyperdrive inside gravity wells. …
R. Martinho Fernandes's user avatar