The Story
Wait, this star system actually exists? Reading The Three-Body Problem, the chills don't come from the aliens — they come from the moments you realize 'wait, this part is real.'
But this novel doesn't actually start as an alien story. It opens with astrophysicist Ye Wenjie losing her father, Ye Zhetai, to the chaos of the Cultural Revolution, and losing her faith in humanity along with him.
Stationed at the secret Red Coast Base, Ye Wenjie completes a transmitter powerful enough for interstellar communication using the sun as an amplifying medium. Eight years later, a pacifist within the Trisolaran civilization warns her not to reply. She ignores the warning and answers anyway — one choice that becomes the trigger for Trisolaris's invasion of Earth.
The secret Red Coast Base is, of course, entirely fictional. But there are real facilities that plausibly inspired it. Miyun Station near Beijing is a genuine Cold War-era Chinese site that's been sending and receiving radio signals to and from space since the 1960s.
And the scene where Ye Wenjie transmits a signal into space isn't pure fiction either. In 1974, humanity actually beamed a deliberate message into space from the Arecibo radio telescope — the Arecibo Message, real history that closely parallels what happens in the novel.
카시니호가 촬영한 목성 (NASA, 2000) · Wikimedia Commons · Public Domain
There's a present-day storyline too. Nanotech researcher Wang Miao gets pulled into a string of physicist suicides and a mysterious VR game called 'Three Body' while chasing the truth behind it all — and during Operation Guzheng, a ship carrying the key evidence against the Earth-Trisolaris Organization (ETO) is sliced apart with nanofiber, revealing the existence of Sophon, the superintelligent computer Trisolaris planted on Earth in advance.
In Book 2, because Sophons can't read human thoughts, the UN secretly grants total authority to four 'Wallfacers' without revealing why. The plans of three of them — Tyler, Rey Diaz, and Hines — collapse or get exposed one by one, and this part genuinely gave me chills.
The last Wallfacer, Luo Ji, uses a cosmic-sociology axiom he learned from Ye Wenjie to gain the power to threaten broadcasting a star's coordinates to the universe — the novel's own answer to why the universe is so quiet: the Dark Forest theory.
Luo Ji wakes from 185 years of hibernation to a future Earth he barely recognizes — only for the Trisolaran scout probe, the 'droplet,' to arrive and wipe out humanity's proud 2,000-ship fleet in minutes.
Luo Ji proves the deterrence works by actually destroying a star, but Book 2 ends with him in a final standoff against the Trisolaran fleet, at his own grave.
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뉴호라이즌스호가 촬영한 명왕성 표면 (NASA/JHUAPL/SwRI, 2015) · Wikimedia Commons · Public Domain
In Book 3, aerospace engineer Cheng Xin proposes the 'Staircase Program' — sending only the brain of her dying lover, Yun Tianming, toward the Trisolaran fleet on a near-light-speed ship. Cheng Xin becomes the second 'Swordholder' after Luo Ji, but hesitates at the critical moment, and Earth's defenses collapse.
In retaliation, the ships Gravity and Blue Space broadcast Trisolaris's coordinates to the entire universe — and Trisolaris itself is ultimately destroyed by an unidentified third civilization. What follows is the trilogy's biggest catastrophe yet: a higher-dimensional weapon collapses the entire solar system from three dimensions into two.
Cheng Xin and AA escape the collapsing solar system on the only remaining light-speed ship. After an interstellar journey, they discover 'Black Domain' technology — sealing themselves off to prove they have no hostile intent — and realize that while only a few weeks pass inside the Black Domain, a staggering 18 million years pass in the outside universe.
Eventually, through Yun Tianming's final gift — an independent pocket universe called 'Universe 647' — Cheng Xin is reunited with him.
But the thing that surprised me most was something else entirely: the 'Trisolaran star system' where the aliens live — Alpha Centauri — isn't an invented name. It's the real star system closest to Earth, about 4.37 light-years away, and on a clear night in the Southern Hemisphere, you can actually see it with the naked eye. The physics throughout the novel — quantum entanglement, gravitational waves — is grounded in real science too. Gravitational waves in particular were first actually detected by humanity in 2015, work that won the 2017 Nobel Prize in Physics.
So this novel is a 400-year cosmic war story, and at the same time, it's built on real science and real history. These days, on a clear night, I catch myself trying to spot roughly where Alpha Centauri would be in the southern sky.
Where the Scene Really Happened
Top 5 locations
중국 헤이룽장성 — 모허(漠河)·대흥안령(大兴安岭) 산맥
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중국 베이징 — 칭화대학교(清华大学)
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중국 베이징 — 칭화대학교 부속중학교(清华大学附属中学)
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중국 베이징 미윈구 — 미윈 관측소(密云观测站)
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중국 허베이성 — 싱룽 관측소(兴隆观测站)
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All The Three-Body Problem locations (45)
중국 베이징 — 칭화대학교(清华大学)
The real, prestigious university where Ye Wenjie built her academic foundation as an astrophysicist before the Red Coast program. In the novel she trains here before being conscripted into defense research and sent to the Red Coast Base in the Greater Khingan Mountains.
중국 베이징 — 칭화대학교 부속중학교(清华大学附属中学)
The site of the novel's opening tragedy: during the Cultural Revolution, physics professor Ye Zhetai (Ye Wenjie's father) is beaten to death by Red Guards at a public struggle session here. This event drives Ye Wenjie to abandon all faith in humanity, eventually leading her to transmit Earth's coordinates to an alien civilization.
중국 헤이룽장성 — 모허(漠河)·대흥안령(大兴安岭) 산맥
The real mountain range where the novel sites its fictional Red Coast Base. In reality this is a vast, remote old-growth forest region spanning China's northernmost reaches; the base itself is entirely fictional and, even within the novel, is described only as a top-secret facility with no findable real location.
중국 베이징 미윈구 — 미윈 관측소(密云观测站)
A radio observatory operated by the Chinese Academy of Sciences since the 1960s. Like the fictional Red Coast Base, it's one of the real Cold War-era Chinese facilities that actually sent and received radio signals to and from space, and is often cited as a possible real-world inspiration for the novel's setting.
중국 허베이성 — 싱룽 관측소(兴隆观测站)
Asia's largest optical astronomical observation base, on the southern foot of the Yan Mountains in Hebei Province. Along with Miyun Station, it's one of the real Chinese astronomy hubs spanning the Cold War era to today — a useful reference for imagining what a top-secret facility like Red Coast Base might plausibly have looked like.
중국 구이저우성 핑탕현 — 톈옌(天眼) FAST 전파망원경
The world's largest single-dish radio telescope, 500 meters in diameter. It's essentially the 21st-century version of the novel's 'facility that actually searches for alien signals,' and genuinely participates in real SETI research, including the Breakthrough Listen project.
Arecibo Observatory
The world's largest radio telescope until its 2020 collapse. In 1974 it broadcast the 'Arecibo Message,' humanity's first deliberate message sent toward the stars — the real event that most directly parallels Ye Wenjie's fateful transmission from Red Coast in the novel.
중국 베이징 — 현재의 베이징 시내
The present-day Beijing where nanomaterials researcher Wang Miao lives in the novel's later chapters. He logs into the VR game 'Three Body' to experience the crisis of Trisolaran civilization firsthand, gradually uncovering the reality of the Earth-Trisolaris Organization (ETO).
파나마 — 파나마 운하(쿨레브라/갈라드 컷)
The site of 'Operation Guzheng' in The Dark Forest (Book 2), where humanity slices apart ETO leader Mike Evans's converted oil tanker, the Judgment Day, using nanofilaments. The canal's real, narrow, elongated geography is written into the story as the key physical condition that makes the operation possible.
UN Headquarters
Where, after the Trisolaran invasion fleet is confirmed, humanity officially launches the 'Wallfacer Project' — selecting four individuals to each independently devise a defense strategy.
Sydney
In Death's End (Book 3), after a Trisolaran probe (a 'droplet') destroys Earth's surface cities, all of humanity is forcibly relocated under the 'Australia Resettlement Plan' — the novel's 'Great Resettlement.' The resulting overcrowding and resource scarcity trigger the chaos known as the 'Sydney Incident.'
Palacio de Miraflores
The home base of Wallfacer Manuel Rey Diaz, former president of Venezuela and a nuclear engineer. His declared plan is to develop more powerful hydrogen bombs, but his real, secret plan is to bury nuclear warheads on Mercury to destabilize its orbit.
벨기에 브뤼셀 — 벨레몽 빌딩(유럽위원회 본부)
The political base of Wallfacer Bill Hines, a Nobel-nominated neuroscientist and former President of the EU. His stated plan is to artificially accelerate human intelligence, but it's later revealed his true goal was to implant a defeatist mindset that would push humanity toward fleeing rather than fighting.
The Pentagon
The base of Wallfacer Frederick Tyler, a former US Secretary of Defense. His plan to deceptively attack the Trisolaran fleet with a swarm of kamikaze fighters is ultimately revealed to be powerless — leading to a tragic end.
중국 간쑤성 — 주취안 위성발사센터(酒泉卫星发射中心)
The real-world root of the future space programs the novel imagines, in which humanity launches ships and probes across the solar system. As the site where China's first crewed spacecraft, Shenzhou 5, actually launched, it lends real weight to narratives like the novel's Staircase Project.
Kennedy Space Center
A site layered with the real history of humanity's launches beyond Earth, from Apollo to today. It's the closest real destination to experiencing the novel's narrative of 'actually launching into space,' whether through the Staircase Project or the building of great stellar fleets.
태양(太阳)
The starting point for every attempt, after the Trisolar Crisis, at humanity building lightspeed ships and testing curvature propulsion to leave the solar system. Even as the entire solar system later collapses into a two-dimensional 'painting' under a higher-dimensional attack, the Sun remains at the story's center to the very end.
지구 — 인류 문명의 마지막 근거지
The planet that remains humanity's last stronghold throughout the Trisolar Crisis. Cheng Xin cycles through repeated hibernation and awakening across the Deterrence Era, Broadcast Era, and Bunker Era, while Earth is surveilled by sophons, attacked by a droplet, and ultimately two-dimensionalized out of existence by a higher-dimensional strike.
수성(水星)
Where Wallfacer Manuel Rey Diaz digs a massive underground cavern, ostensibly to build a 'fortress.' His real, secret plan is to bury all of humanity's nuclear weapons on Mercury and detonate them to destabilize its orbit, threatening a chain reaction that would send the inner planets falling into the Sun.
목성(木星) 궤도
Where roughly 2,000 ships of humanity's combined fleet gather to greet the droplet, a Trisolaran probe. During what should have been a grand fleet review, a single droplet destroys nearly the entire fleet within minutes — the 'Doomsday Battle.'
해왕성(海王星) 궤도 인근
The outer solar system region where humanity attempts the 'Snow Project' — using nuclear explosions to create vast dust clouds, hoping to indirectly track the Trisolaran fleet's movement while evading sophon surveillance.
명왕성(冥王星)
Where Luo Ji, having guarded humanity through 62 years as its first Swordholder during the Deterrence Era, spends his retirement overseeing construction of the 'Earth Civilization Museum.'
헤일로 시티(光晕城) — 목성 뒤편 벙커 도시
One of roughly fifty space cities humanity builds in the shadows of Jupiter, Saturn, Uranus, and Neptune under the 'Bunker Project' after the higher-dimensional attack. The idea was that hiding behind a gas giant's shadow could deflect a directional strike — but it proved useless against the dimensional collapse that later swallowed the entire solar system.
흑역(黑域) — 저광속 요새 구상
The idea of deliberately lowering the local speed of light to just 16.7 km/s, creating an inescapable prison to hide inside. Humanity considers it as one of three survival strategies — alongside the Bunker Project and lightspeed ships — but never actually builds one.
4차원 파편 — 오르트 구름 너머
A trace of higher-dimensional space, left behind within our three-dimensional universe, discovered by the ships Blue Space and Gravity in deep space beyond the Oort Cloud. Those who enter it perceive space in ways humanity has never before experienced.
the Ring
A massive ring-shaped structure the crew of Blue Space encounters as the four-dimensional fragment collapses around them. Resembling the 'tomb' of some ancient civilization, its true nature is never fully explained.
태양계의 2차원화 — 이향박(二向箔) 공격
A weapon thrown by an unknown higher-dimensional civilization — a 'dual vector foil' — passes through the solar system, instantly collapsing the entirety of three-dimensional space into a two-dimensional plane. The sight of Jupiter and Neptune unfurling like a giant painting is often cited as the trilogy's single most overwhelming image.
중력파 방송 — 오르트 구름 바깥
The event in which the ship Gravity uses its own stellar-scale mass to broadcast gravitational waves beyond the solar system, revealing Earth's coordinates (and Trisolaris's) to the entire universe. This 'gravitational wave broadcast' places both humanity and Trisolaris under the threat of a dark forest strike.
계단 계획(阶梯计划)
A plan to send the brain of the terminally ill Yun Tianming — both a final gift to Cheng Xin, whom he loved, and a reconnaissance mission for humanity — toward the Trisolaran fleet. The proposal was to accelerate a lightweight sail-equipped probe using the radiation pressure from a chain of nuclear detonations.
알파 센타우리(센타우루스자리 알파, 삼체 항성계)
The real star system where three suns govern the life of Trisolaran civilization — the very system that gives the 'three-body problem' its name. As Earth's nearest neighboring star system, the novel expands its real, chaotic orbital dynamics into a civilization-threatening premise.
트리솔라리스(삼체 행성)
The home planet of Trisolaran civilization, which evolved while cycling between unpredictable 'Chaotic Eras' — driven by the irregular pull of three suns — and rare, brief 'Stable Eras.' After hundreds of civilizations rose and fell, the Trisolarans ultimately decide to invade Earth in search of a stable new home.
트리솔라리스 함대 — 지구를 향한 항로
The Trisolaran invasion fleet, roughly 400 years into its voyage toward the solar system. It communicates with its homeworld in near-real time across light-years via sophons, closing in slowly while blockading humanity's scientific progress.
항성 187J3X1
An ordinary star about 50 light-years from Earth, whose coordinates Wallfacer Luo Ji repeatedly broadcasts into space to prove dark forest theory. The star is later destroyed by a near-lightspeed object called a 'photoid,' proving the theory isn't just a hypothesis.
DX3906 항성계
The star given as a final gift by the terminally ill Yun Tianming to Cheng Xin, whom he'd loved since university. About 286.5 light-years from Earth, it has two planets — a blue one and a gray one — and later becomes the destination of humanity's last survivors after the Trisolar Crisis.
청색 행성(블루 플래닛)
An Earth-sized planet orbiting closer to its star in the DX3906 system. It has an oxygen-bearing atmosphere and signs of life, but no trace of agriculture or industry — it later becomes the new home of humanity's last survivors.
회색 행성(그레이 플래닛)
A barren, Mars-sized planet farther from the star in the DX3906 system. With no atmosphere, its surface appears uniformly gray — a stark contrast to the blue planet nearby.
소우주(포켓 유니버스) 647호
A small 'pocket universe,' split off from our own universe, discovered by Cheng Xin and Guan Yifan near the DX3906 system. In the trilogy's finale, those who escape into this pocket universe must decide, as the greater universe enters an era of mass recovery to reconstitute itself, whether to return the mass they carry.
자연선택호(自然选择号)
A stellar-class warship of the Asian Fleet, and the largest vessel in the entire combined fleet by tonnage. Commanded by Captain Zhang Beihai, it becomes central to the 'escapism' debate over humanity's survival after the Doomsday Battle.
블루스페이스호(蓝色空间号)
One of the ships that survived the Doomsday Battle and fled into deep space. It later discovers a four-dimensional fragment and gains a foothold in curvature propulsion technology, becoming one of the very few human ships in history to travel at near-lightspeed.
그래비티호(万有引力号)
The first warship humanity builds after the Doomsday Battle, designed from the start to carry a massive gravitational wave antenna. Carrying Cheng Xin and Guan Yifan, it ultimately broadcasts gravitational waves beyond the solar system, exposing Earth's coordinates to the universe.
청동시대호(青铜时代号)
A ship that survives the Doomsday Battle and joins the fleeing fleet. Amid a desperate struggle for resources, it kills the entire crew of its sister ship Quantum with an infrasonic hydrogen bomb — one of the trilogy's most chilling scenes.
양자호(量子号)
One of the few ships to survive the Doomsday Battle — only to be destroyed later when its sister ship, Bronze Age, kills its entire crew amid a resource struggle within the fleeing fleet.
얼티밋 로우호(유럽함대 소속)
A stellar-class warship of the European Fleet, recorded as one of the major vessels making up the combined fleet during the Doomsday Battle.
엔터프라이즈호(북미함대 소속)
A stellar-class warship of the North American Fleet, recorded among the roughly 2,000 ships of the combined fleet gathered for the Doomsday Battle.
딥스페이스호(深空号)
A stellar-class warship of the combined fleet, recorded among the vessels gathered for the Doomsday Battle.