Pushing Ice
by Alastair Reynolds · first published 2005
72% recommend24% neutral4% critical
Why HN recommends it
Hard sci-fi first-contact story that stays within known physics, with deeply alien encounters and time dilation as a way around light-speed limits. Works as a standalone entry point to Reynolds.
Summarised by Claude from recommending comments
In 2057, Bella Lind and the crew of the Rockhopper mine comets for their ice, but when Janus, one of Saturn's ice moons, inexplicably leaves its orbit and heads out of the solar system at high speed, Bella is assigned to follow it.
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…contact stories that are better (IMO) than The Three Body Problem, try: - Blindsight by Peter Watts (cannot recommend this strongly enough) - The Forge of God and sequel Anvil of Stars by Greg Bear - Pushing Ice by Alastair Reynolds - Roadside Picnic by Arkady and Boris Strugatsky I appreciated getting a non-Western take on one of the most durable SF tropes in the Three Body Problem, but I didn't much enjoy…
on “China's Race to Find Aliens First” ↗…incredibly alien and I have no idea what will happen next". Other books with a similar plot structure and deeply alien vibe: - Shroud by Adrian Tchaikovsky (recommended elsewhere in this thread) - Pushing Ice by Alastair Reynolds I know there's one I'm forgetting.
on “Rendezvous with Rama” ↗Alastair Reynolds is a hard scifi author with a PhD in astrophysics, and most of his works deal with this in some fashion. One is Pushing Ice (SPOILER IN REST OF POST), which tackles your question about civilizations not really having the ability to communicate with each other, not only because the galaxy 100,000 light years across, but also…
on “SETI: No Signal Detected from KIC 8462852” ↗One of my favorites is based on a similar premise, Pushing Ice by Alastair Reynolds. I like most of his work but for short stand-alone stories this one stands out. Reynolds works are hard sci-fi, mostly sticking within the known laws of physics which present some…
on “Ask HN: What are the best Sci-Fi books you've ever read?” ↗I'm surprised to not see "Pushing Ice" advanced as the leading Reynolds recommendation. I think his other works are good, but in my view Pushing Ice is an usually good stand alone work.
on “The Realism of Our Times: Kim Stanley Robinson on how science fiction works” ↗So many good books to recommend. Here's a selection - Diaspora by Greg Egan - Pushing Ice by Alastair Raynolds - Watership Down by Richard Adams - The Last Unicorn by Peter S. Beagle - The Price of Nothing by R. Scott Baker - Blindsight by Peter Watts
on “Ask HN: What is your favorite fiction book?” ↗I enjoyed pretty much everything from cstross and Reynolds (pushing ice and especially house of suns are great stand alone). I enjoyed quantum thief but somehow I have yet to go beyond the first book.
on “Permutation City (1994)” ↗"Pushing Ice" by Alastair Reynolds is a great sci-fi novel that explores some of these ideas, if anyone's interested. Highly recommended!
on “Voyager 1 is back online: NASA spacecraft returns data from all 4 instruments” ↗I read 14 books this year and my favourite was Eversion by Alastair Reynolds, followed closely by Pushing Ice by the same author. I "discovered" Cory Doctorow this year, reading 4 books (and I have another in my queue), being "Attack Surface" the one I liked most. The only technical book I read was Programming…
on “Ask HN: What did you read in 2025?” ↗…standalone than calling it a series would suggest, but he also has lots of other one-shot books, and a few trilogies, if that would be a better way for you to try him out. I got into him via the standalone Pushing Ice.
on “Sins of the Children (Adrian Tchaikovsky)” ↗Blindsight by Peter Watts Pushing Ice by Alastair Reynolds Startide Rising by David Brin A Fire Upon the Deep by Vernor Vinge The Algebraist by Iain M. Banks Semiosis by Sue Burke Project Hail Mary by Andy Weir Dragon's Egg by Robert…
on “Sins of the Children (Adrian Tchaikovsky)” ↗While reading Pushing Ice a very common thought I had was "did Reynolds want to do a Rama sequels?" Shroud is great, easy recommendation. Another of Tchaikovsky, Alien Clay, also great, also very alien.
on “Rendezvous with Rama” ↗Echoing others, Reynolds (House of Suns, Pushing Ice, the Revelation Space series), Stross (Accelerando, Glasshouse, and Saturn's Children/Neptune's Brood are my favorites), and Rajaniemi (the Quantum Thief trilogy) scratch roughly the same itch for me.
on “Accelerando (2005)” ↗Pushing Ice is a great sci-fi novel. I really don't want to spoil it, but Reynolds does have something of a solution to the problem of the speed of light being so limiting, and it's based on time dilation. As usual…
on “What is a light-day? The milestone Voyager 1 is closing in on” ↗In Pushing Ice if I recall correctly. Fantastic novel, also discusses the threat of the EM spectrum being blue-shifted to harmful wavelengths.
on “Highly relativistic spaceflight would be fatal for passengers and instruments” ↗