Trisolaran probe
Names: Trisolaran probeprobethe dropletthe targetmercury dropletthe tear of the blessed motherthe dragondropletsdroplet groupstrong-interaction space probestrong-interaction space probesstrong-interaction probes
First appears in Book 2: The Dark Forest, chapter 7 (Year 205, Crisis Era)
Appearances
What you know
Book 2: The Dark Forest
- Ch 7One Trisolaran probe is due to reach the Solar System this year, with nine more arriving three years later.
- Ch 7The probe is approaching the Solar System, and the fleets are preparing to intercept it in their first engagement with the Trisolarans.
- Ch 7The three fleets compete for the honor of intercepting it, a risk-free political prize; the Joint Conference ordered ships kept in port under a supervising committee.
- Ch 7The Trisolaran probe's engines have shut off, so the telescope can no longer track it by engine light; it will cross Jupiter's orbit in six days.
- Ch 7The probe restarted its engines and kept decelerating, showing it intends to stay in the Solar System rather than pass through.
- Ch 7A 3.5-meter, perfectly smooth, totally reflective teardrop resembling a mercury droplet; Ding Yi finds its artistic look an ominous sign.
- Ch 8A mercury-like droplet of perfect shape with under ten tons of mass, reflecting nearly 100 percent at every frequency; its surface is near absolute zero.
- Ch 8Because it reflects all radiation, humans concluded it is blind and nonfunctional, and interpreted it as a Trisolaran gift of goodwill and peace.
- Ch 8It did not self-destruct after Mantis captured it, which humanity took as final proof that it was a peace gift rather than a military probe.
- Ch 8Under microscope magnification up to ten million times, the droplet's surface remains perfectly smooth, and a steel claw and a rock pick left no marks.
- Ch 8The droplet is at absolute zero and is vastly stronger than any known material, able to pass through Earth like a bullet through cheese.
- Ch 8The droplet survived Mantis's explosion and propelled itself with rapid blue-to-red halos at its tail, accelerating beyond the third cosmic velocity.
- Ch 8The droplet makes sharp turns at high speed with no loss of velocity, which is impossible under human aerospace mechanics.
- Ch 8The droplet is invisible to radar at all wavelengths and could be found only through visible-spectrum image analysis.
- Ch 8In one minute eighteen seconds the droplet destroyed all hundred ships in the fleet's first row, then turned toward the next row, led by Ganges.
- Ch 8Within ten seconds it destroyed twelve warships of the second row, and it destroyed the whole 100-ship second row in 1 minute 21 seconds.
- Ch 8It moves with sharp-angled turns, two or three per second, a drive beyond human comprehension; it never dropped below thirty kilometers per second while attacking the third row.
- Ch 8It destroys warships by ramming, usually striking fuel tanks, so each ship turns red-hot and erupts in a nuclear fireball.
- Ch 8When struck by Nelson's gamma-ray lasers it emitted blinding light, then emerged unscathed; railgun shells from Green also failed to hurt it.
- Ch 8It is made of strong-interaction material, so nothing in the Solar System can damage it; it was untouchable.
- Ch 8It accelerated to sixty, then about 170 kilometers per second, and destroyed over a thousand ships in twenty minutes, then the entire fleet within about an hour.
- Ch 8About 10 percent of its targets were not hit in the fuel tanks, so their crews burned slowly before the ships exploded.
- Ch 8It abandoned chasing Quantum and Bronze Age as too far and fast, then set heading toward the sun.
- Ch 8A single Trisolaran probe destroyed humanity's entire combined fleet except for a few ships; nine more like it are three years from the Solar System.
- Ch 8The droplet ignored small craft; about sixty thousand survivors escaped in fighters and small vessels and were rescued by civilian ships beyond Uranus.
- Ch 8It approached Earth at 75 km/s, then decelerated and stopped at a Lagrange point 1.5 million km away between Earth and the sun.
- Ch 8Experts believe its energy is nearly exhausted and cannot explain its purpose. It then began beaming a powerful electromagnetic wave at the sun.
- Ch 8A droplet is locking down the sun with continuous radio suppression, so Luo Ji's spell cannot be broadcast again.
- Ch 8The nine other droplets travel dark, with engines emitting no light or radiation, so humanity has lost their tracks and cannot say when they will arrive.
- Ch 9The droplet has lifted its seal on the sun, though human signal transmission is still too primitive.
Book 3: Death's End
- Ch 16Trisolaris proposed sending a droplet to destroy Blue Space, but Earth refused as another droplet attack on humans was politically unacceptable.
- Ch 22Droplets fly in formation about five kilometers from Gravity. Their mirrorlike surfaces reflect the ship, and the crew find them comforting to watch.
- Ch 22The droplets could catch up with and destroy Blue Space even if its crew escaped Gravity.
- Ch 24Cut off from Trisolaris, the two droplets must rely on onboard AI, leading to unpredictable results.
- Ch 24Under an agreement made with Trisolaris half a century earlier, the droplets hold position about 300,000 km from both ships.
- Ch 24Two droplets suddenly accelerate to attack, one toward Blue Space and the other toward Gravity, leaving only seconds before impact.
- Ch 26Ten droplets reached the Solar System; four were kept beyond the Kuiper Belt with human probes, two later followed Gravity, and six are unaccounted for.
- Ch 26Humans can reliably detect droplets only within 1/10 AU (fifteen million km) of Earth, which a droplet can cross in ten minutes at maximum speed.
- Ch 28Six strong-interaction probes arrived from just outside the fifteen-million-kilometer warning zone: three hid in solar interference and three in orbiting space trash, avoiding detection.
- Ch 28One droplet went toward the Sun-Earth L1 point; the other five approached Earth, targeting the gravitational wave transmitters in Asia, North America and Europe and Control Station Zero.
- Ch 28The droplets began accelerating toward Earth the moment Cheng Xin took the red switch from Luo Ji, wasting no time.
- Ch 28The droplets did not attack the Swordholder or the Deterrence Center directly; they destroyed the broadcast transmitters and suppressed solar radio amplification on all bands.
- Ch 29The droplet penetrated the Earth, leaving a thick mushroom cloud of earth and dust on the horizon.
- Ch 30A droplet needed slightly more than ten seconds on average to penetrate the crust and destroy a transmitter.
- Ch 31A droplet penetrated the crust, destroyed the gravitational wave antenna, then retraced its path out of the ground, causing two brief eruptions.
- Ch 34A droplet attacked three large cities in Asia, Europe and North America, striking hanging buildings and killing over three hundred thousand people, to instill terror.
- Ch 36Droplets had cruised in formation with Gravity as insurance, ready to destroy it if mutiny occurred; they can reach a target within five seconds.
- Ch 36In the attack both droplets missed their targets, their surfaces dull and rusty because their force fields had failed; they appeared dead.
- Ch 37All the droplets are gone, so the Solar System no longer faces Trisolaran invasion.
- Ch 38Humans ambushed the droplets from four-dimensional space and sabotaged their internal mechanisms at random. The droplets, being three-dimensional, were completely exposed and defenseless.
- Ch 46Until the very end, direct contact between Trisolarans and humans was limited to the droplets.
Connections
- related toMantiscaptured it
- member ofOur LordTrisolaran probe
- enemy ofSolar Fleet
- ally ofGravityfly in formation with Gravity
- part ofOur Lord
- enemy ofgravitational-wave antennadestroyed it
Key moments
- Book 2 · Ch 7The probe goes dark
The Trisolaran probe's engines go out, making it untraceable; Kuhn and Robinson, hampered by fleet disputes, decide to try a stellar bomb near Neptune to create a dust cloud to detect it.
- Book 2 · Ch 7Blue Shadow finds the Trisolaran probe
The dust-cloud wake lets Ringier-Fitzroy Station compute the probe's trajectory; Blue Shadow rendezvous and sights it, realizing it is decelerating to stay in the Solar System.
- Book 2 · Ch 8Mantis captures the droplet
Mantis approaches and grasps the droplet, retracts it into its cabin, and two hours pass without self-destruction. Earth celebrates and opinion toward Trisolaris softens.
- Book 2 · Ch 8Expedition shuttle departs
Ding Yi, Xizi and two officers from the European and North American Fleets leave Quantum by shuttle toward the droplet.
- Book 2 · Ch 8Expedition examines the droplet aboard Mantis
The team boards Mantis and tests the droplet, finding its surface perfectly smooth at ten million times magnification and unmarked by a claw or pick. Ding Yi concludes it is held by strong interaction and is a threat.
- Book 2 · Ch 8Droplet destroys Mantis and the first row of the fleet
Communications are jammed, the droplet ignites its tail halo, vaporizes the team and Mantis, then speeds through the fleet's first row of a hundred warships, detonating them in fusion explosions in 78 seconds.
- Book 2 · Ch 8Fleet fails to grasp the attack
As the droplet turns toward Ganges and the second row, Fleet Command is in shock and relies on a computer that blames an unseen enemy force.
- Book 2 · Ch 8Droplet destroys the second and third rows
The droplet annihilates the second row of 100 ships in under a minute and a half, then weaves through the third row in 2 minutes 35 seconds while debris adds to the confusion.
- Book 2 · Ch 8Annihilation of humanity's fleet
The droplet destroys the fleet in the debris cloud and its fleeing remnants. Only Quantum and Bronze Age escape; the droplet then heads toward the sun.
- Book 2 · Ch 8Luo Ji awaits the droplet
Luo Ji parts from Shi Qiang and waits in the desert, reviewing his life, believing the droplet will strike him.
- Book 2 · Ch 8The droplet seals off the sun
The droplet stops at a Lagrange point and broadcasts radio at the sun, blocking its use as a message amplifier. Luo Ji survives and reunites with Shi Qiang.
- Book 2 · Ch 9Final showdown with Trisolaris
Luo Ji, pistol to his heart, announces the bomb broadcast deterrent. Sophons appear, and Trisolaris agrees to halt the probe transmissions and redirect the nine droplets, but not turn the fleet.
- Book 3 · Ch 16Blue Space flees and Gravity pursues
Blue Space begins full acceleration away. Earth and Trisolaris see it as a shared enemy. Earth refuses a droplet strike, and Gravity with two droplet escorts pursues, fifty years from catching it.
- Book 3 · Ch 18Authority handed back to Luo Ji
After Luo Ji transferred deterrence control to the UN and Fleet, humanity quickly realized only he gave credible deterrence and returned it within eighteen hours; Trisolaris failed to strike during that window.
- Book 3 · Ch 22Loss of real-time communication with Earth
A year earlier, with the ships thirty AU apart, Gravity and its droplets entered a region where sophons lost their quantum ties to home, forcing slow neutrino and radio communication with Earth.
- Book 3 · Ch 24Blue Space surrenders
Gravity refuses Blue Space's partial surrender offer; at fifteen AU, Blue Space announces surrender and decelerates, so Gravity's crew wakes and prepares for combat.
- Book 3 · Ch 24Droplet attack on Gravity and Blue Space
Battle alarms sound as two droplets accelerate, one toward each ship. With no time to evade, Guan and West calmly accept imminent death.
- Book 3 · Ch 26Droplet deployment agreement
Earth agreed that four droplets stay beyond the Kuiper Belt, each accompanied by a human probe; the other six droplets' whereabouts remain unknown.
- Book 3 · Ch 28Six droplets attack Earth
Early-warning systems detect six droplets approaching Earth at 25,000 km/s with about ten minutes to impact, having hidden just outside the warning zone.
- Book 3 · Ch 28Deterrence terminated
The droplets destroy the three gravitational wave transmitters and suppress solar radio amplification, ending dark forest deterrence without attacking the Swordholder.
- Book 3 · Ch 29Cheng Xin emerges after deterrence ends
Cheng Xin surfaces to the empty plaza and sees the mushroom cloud where the droplet struck. The guards don't yet know what happened.
- Book 3 · Ch 30Analysis of deterrence failure
The author argues the failure stemmed less from the number of transmitters than from their vulnerable placement. Gravitational wave ships were never built in numbers because of extremist threats, cost, and a deep fear of their power.
- Book 3 · Ch 31Antenna destroyed by droplet
A Trisolaran droplet pierced the Gobi crust, destroyed the gravitational wave antenna and caused two eruptions, ending Earth's deterrence.
- Book 3 · Ch 34Droplet attack on three cities
Five days after the proclamation, a droplet strikes hanging buildings in cities on three continents, killing over 300,000 and showing human cities are defenseless.
- Book 3 · Ch 36Droplets miss and are found dead
Both droplets narrowly miss Gravity and Blue Space. Replays show them rusted and lifeless, deflected and slowed by a Blue Space shuttle, implying Blue Space knows how to disable droplets.