Entity field notes
Meet the people, systems, places, and machines.
Every dossier begins with a premise-safe public identity. Book-specific roles, relationships, and outcomes remain tied to your reading progress.
Public dossiers
77 story entities, indexed without outcomes
Descriptions identify what an entity is at premise level. Deeper story meaning remains inside the progress-aware article.
Ye Wenjie
An astrophysicist whose experiences of political violence shape her judgment of humanity and first contact.
Wang Miao
A nanotechnology researcher who follows impossible experimental evidence into a civilization-scale crisis.
Shi Qiang
A police investigator whose practical reading of human motives counterbalances the scientists around him.
Yang Dong
A physicist whose death becomes one of the central absences in the present-day investigation.
Shen Yufei
A physicist connected to a secretive scientific circle and the Three Body experience.
Red Coast Base
A remote military research installation built to explore communication beyond Earth.
Frontiers of Science
An international scientific group debating the limits and direction of fundamental physics.
Three Body
A virtual world that turns an unstable celestial system into an experiential civilization problem.
Trisolaris
A civilization formed by recurring environmental instability beneath three suns.
Earth–Trisolaris Organization
A human movement divided by competing beliefs about extraterrestrial arrival and humanity’s future.
Sophon
An intelligent technology associated with the contest over scientific knowledge between Earth and Trisolaris.
Ryland Grace
A science teacher and molecular biologist who wakes aboard an interstellar mission without his memory.
Eva Stratt
The administrator given extraordinary international authority to organize humanity's response to the solar crisis.
Rocky
An engineer from another civilization whose scientific perspective differs radically from humanity's.
Hail Mary
A one-way research vessel built to carry a small crew and a laboratory to the Tau Ceti system.
Astrophage
A microscopic life form that stores stellar energy and drives both the planetary emergency and the technology sent to investigate it.
Project Hail Mary
An international emergency program created to investigate the one nearby star that appears resistant to Astrophage.
Eridians
A technologically inventive civilization whose environment and sensory world differ radically from humanity's.
Taumoeba
A microscopic organism studied during the scientific investigation near Tau Ceti.
Luo Ji
A sociologist drawn into planetary strategy because an apparently abstract idea makes him uniquely dangerous to Trisolaris.
Zhang Beihai
A political officer whose patient commitment to human survival extends across institutions and centuries.
Zhuang Yan
An artist whose relationship with Luo Ji becomes entangled with the incentives and coercion of the Wallfacer Project.
Ding Yi
A physicist who carries scientific grief from the first-contact crisis into humanity's encounter with Trisolaran technology.
Frederick Tyler
A Wallfacer whose strategic authority allows him to conceal a desperate defense plan inside public preparations.
Manuel Rey Diaz
A Wallfacer who approaches deterrence through planetary-scale destruction and political brinkmanship.
Bill Hines
A neuroscientist and Wallfacer who attempts to preserve confidence in victory by changing the mind itself.
Keiko Yamasuki
A neuroscientist whose intimate access to Bill Hines's work gives her a decisive role in exposing his hidden strategy.
Planetary Defense Council
An international body coordinating Earth's long preparation for the approaching Trisolaran fleet.
Wallfacer Project
A defense program that grants four individuals extraordinary resources so their true plans can remain private from sophon surveillance.
The droplet
A compact Trisolaran probe sent toward the Solar System ahead of the main fleet.
Natural Selection
A human space-force vessel built during Earth's long preparation for the approaching fleet.
Blue Space
A human warship created during Earth's centuries-long planetary defense effort.
Bronze Age
A human warship created during Earth's centuries-long planetary defense effort.
Cheng Xin
An aerospace engineer whose repeated authority over civilization-scale decisions tests the relationship between care and survival.
Yun Tianming
A longtime acquaintance of Cheng Xin whose life becomes entangled with humanity's response to Trisolaris.
Thomas Wade
A relentless intelligence administrator who treats technological advance and species survival as overriding priorities.
艾 AA
An astronomer and entrepreneur who becomes Cheng Xin's trusted partner across radically different eras.
Guan Yifan
A physicist associated with humanity's expanding understanding of interstellar space.
Gravity
A human gravity-wave transmission ship created during the Trisolaran crisis.
Staircase Program
An experimental mission exploring how a human payload might reach the incoming Trisolaran fleet.
Swordholder system
A human command structure created to maintain strategic deterrence between Earth and Trisolaris.
Halo
A spacecraft connected to private aerospace research during humanity's interstellar era.
Singer
A distant observer associated with civilizations beyond the Solar System.
Dual-vector foil
An advanced weapon associated with the manipulation of spatial dimensions.
Universe 647
An artificial habitat separated from ordinary spacetime.
The Returners
A mysterious coalition whose message concerns the long-term future of the cosmos.
Siri Keeton
A synthesist who models specialist knowledge and social behavior after childhood brain surgery changed his access to emotion and empathy.
Jukka Sarasti
A genetically reconstructed vampire whose predatory cognition and machine links make him an exceptionally capable and dangerous mission commander.
Susan James
A linguist whose surgically partitioned brain supports several distinct personalities working through one shared body.
Isaac Szpindel
A biologist extensively integrated with remote instruments and sensory prostheses for studying unfamiliar environments and organisms.
Amanda Bates
A military specialist who commands remote combat systems and evaluates the tactical risks of the first-contact mission.
Theseus
A machine-governed spacecraft that carries a hibernating contact team and adapts its own structure, route, and mission resources.
Rorschach
A vast active extraterrestrial structure encountered near the substellar object Big Ben.
Scramblers
Radially organized extraterrestrial organisms associated with the structure called Rorschach.
Mark Watney
An Ares 3 botanist and mechanical engineer stranded on Mars after the mission evacuates without him.
Melissa Lewis
The commander of Ares 3 and Hermes, responsible for her crew during the evacuation and later rescue decisions.
NASA
The space agency coordinating observation, engineering, public communication, and rescue planning from Earth.
Ares 3
The third crewed Mars expedition and the mission whose evacuation leaves equipment and one astronaut behind.
The Hab
The Ares 3 surface habitat containing the life-support, food, tools, and shelter Mark must adapt for long survival.
Pathfinder
An earlier Mars lander recovered and repurposed as a communication bridge between the surface and Earth.
Hermes
The ion-powered interplanetary spacecraft carrying the Ares 3 crew between Earth and Mars.
Ares 4 MAV
A pre-positioned vehicle intended to launch the next Mars crew from the surface to orbit.
Rich Purnell maneuver
An interplanetary trajectory proposal developed during NASA's response to the Ares 3 emergency.
Yalda
A physicist whose study of light and the Hurtlers helps turn a planetary threat into the multigenerational Peerless mission.
Eusebio
A former student of Yalda who develops the audacious proposal to convert Mount Peerless into a generation ship.
Valeria
A young student who remains on the home world and later witnesses the mission's meaning from the history it was sent to protect.
Peerless
A hollowed mountain launched as a rotating, multigenerational laboratory and habitat to gain time for lifesaving research.
The Hurtlers
Extremely fast objects on intersecting histories whose impacts threaten Yalda's planetary system with escalating destruction.
Tamara
An astronomer aboard the Peerless whose work on the Object and reproductive reform links scientific risk with bodily freedom.
Carlo
A biologist investigating how the travelers can reproduce without making birth fatal or population growth uncontrollable.
Carla
A physicist whose teaching and synthesis connect quantized light to a propulsion cycle that can outlast finite fuel.
Patrizia
A student physicist whose insight into quantized light becomes a foundation for later discoveries aboard the Peerless.
The Eternal Flame
An experimental light-based propulsion system studied aboard the Peerless.
Agata
A scientist who supports the Peerless's return mission while testing how opposite time arrows and future knowledge affect choice.
Ramiro
An engineer and dissenter who fears that receiving news from the future will replace deliberation with obedience to a fixed record.
Esilio
A world in the orthogonal cluster whose local thermodynamic arrow runs opposite to that of the Peerless travelers.
Future messaging system
An experimental communication apparatus connected to the unusual physics of the orthogonal star field.