''Dragon's Egg'' is a 1980

hard science fiction Hard science fiction is a category of science fiction characterized by concern for scientific accuracy and logic. The term was first used in print in 1957 by P. Schuyler Miller in a review of John W. Campbell's ''Islands of Space'' in the Novemb ...

novel by American writer Robert L. Forward. In the story, Dragon's Egg is a

neutron star A neutron star is the gravitationally collapsed Stellar core, core of a massive supergiant star. It results from the supernova explosion of a stellar evolution#Massive star, massive star—combined with gravitational collapse—that compresses ...

with a

surface gravity The surface gravity, ''g'', of an astronomical object is the gravitational acceleration experienced at its surface at the equator, including the effects of rotation. The surface gravity may be thought of as the acceleration due to gravity experi ...

billion Billion is a word for a large number, and it has two distinct definitions: * 1,000,000,000, i.e. one thousand million, or (ten to the ninth power), as defined on the short scale. This is now the most common sense of the word in all varieties of ...

times that of Earth, and inhabited by cheela, intelligent creatures the size of

sesame Sesame (; ''Sesamum indicum'') is a plant in the genus '' Sesamum'', also called benne. Numerous wild relatives occur in Africa and a smaller number in India. It is widely naturalized in tropical regions around the world and is cultivated for ...

seeds who evolve, live, and think a million times faster than humans. Most of the novel, from May to June 2050, chronicles the cheela civilization beginning with its discovery of agriculture to advanced technology and its first face-to-face contact with humans, who are observing the hyper-rapid evolution of the cheela civilization from orbit around Dragon's Egg. ''Dragon's Egg'' attempts to communicate unfamiliar ideas and imaginative scenes while giving adequate attention to the known scientific principles involved.

Plot summary

The neutron star

Half a million years ago and 50

light-years A light-year, alternatively spelled light year (ly or lyr), is a unit of length used to express astronomical distances and is equal to exactly , which is approximately 9.46 trillion km or 5.88 trillion mi. As defined by the International Astro ...

from Earth, a star in the

constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The first constellati ...

Draco turns

supernova A supernova (: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last stellar evolution, evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion ...

, and the star's remnant becomes a

. The

radiation In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. This includes: * ''electromagnetic radiation'' consisting of photons, such as radio waves, microwaves, infr ...

from the explosion causes

mutation In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. Viral genomes contain either DNA or RNA. Mutations result from errors during DNA or viral replication, ...

s in many Earth organisms, including a group of

hominina The australopithecines (), formally Australopithecina or Hominina, are generally any species in the related genera of ''Australopithecus'' and ''Paranthropus''. It may also include members of ''Kenyanthropus'', ''Ardipithecus'', and '' Praeanth ...

that become the ancestors of ''

Homo sapiens Humans (''Homo sapiens'') or modern humans are the most common and widespread species of primate, and the last surviving species of the genus ''Homo''. They are Hominidae, great apes characterized by their Prehistory of nakedness and clothing ...

''. The star's short-lived plasma jets are lop-sided because of anomalies in its

magnetic field A magnetic field (sometimes called B-field) is a physical field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular ...

, and set it on a course passing within 250

astronomical unit The astronomical unit (symbol: au or AU) is a unit of length defined to be exactly equal to . Historically, the astronomical unit was conceived as the average Earth-Sun distance (the average of Earth's aphelion and perihelion), before its m ...

s of the

Sun The Sun is the star at the centre of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light a ...

. In 2020 AD, human astronomers detect the neutron star, call it "Dragon's Egg", and in 2050 they send an expedition to explore it. The star contains about half of a

solar mass The solar mass () is a frequently used unit of mass in astronomy, equal to approximately . It is approximately equal to the mass of the Sun. It is often used to indicate the masses of other stars, as well as stellar clusters, nebulae, galaxie ...

of matter, compressed into a

diameter In geometry, a diameter of a circle is any straight line segment that passes through the centre of the circle and whose endpoints lie on the circle. It can also be defined as the longest Chord (geometry), chord of the circle. Both definitions a ...

of about , making its

times that of Earth. Its outer crust, compressed to about 7,000 kg per cubic centimeter, is mainly iron nuclei with a high concentration of

neutron The neutron is a subatomic particle, symbol or , that has no electric charge, and a mass slightly greater than that of a proton. The Discovery of the neutron, neutron was discovered by James Chadwick in 1932, leading to the discovery of nucle ...

s, overlaid with about of white dwarf star material. The

atmosphere An atmosphere () is a layer of gases that envelop an astronomical object, held in place by the gravity of the object. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. A stellar atmosph ...

, mostly iron vapor, is about thick. The star shrinks slightly as it cools, causes the crust to crack and produce mountains high. Large

volcano A volcano is commonly defined as a vent or fissure in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most oft ...

es, formed by liquid material oozing from deep cracks, can be many centimeters high and hundred meters in diameter, and will eventually collapse, causing starquakes. Forward: Dragon's Egg (technical), pp. 287-289 Around 3000 BC Dragon's Egg cools enough to allow a stable equivalent of "

chemistry Chemistry is the scientific study of the properties and behavior of matter. It is a physical science within the natural sciences that studies the chemical elements that make up matter and chemical compound, compounds made of atoms, molecules a ...

", in which " compounds" are constructed of nuclei bound by the

strong force In nuclear physics and particle physics, the strong interaction, also called the strong force or strong nuclear force, is one of the four known fundamental interactions. It confines quarks into protons, neutrons, and other hadron particles, an ...

, rather than of Earth's

atom Atoms are the basic particles of the chemical elements. An atom consists of a atomic nucleus, nucleus of protons and generally neutrons, surrounded by an electromagnetically bound swarm of electrons. The chemical elements are distinguished fr ...

s bound by the

electromagnetic force In physics, electromagnetism is an interaction that occurs between particles with electric charge via electromagnetic fields. The electromagnetic force is one of the four fundamental forces of nature. It is the dominant force in the interac ...

. As the star's chemical processes are about one million times faster than Earth's,

self-replicating Self-replication is any behavior of a dynamical system that yields construction of an identical or similar copy of itself. Cell (biology), Biological cells, given suitable environments, reproduce by cell division. During cell division, DNA repli ...

"molecules" appear shortly and

life Life, also known as biota, refers to matter that has biological processes, such as Cell signaling, signaling and self-sustaining processes. It is defined descriptively by the capacity for homeostasis, Structure#Biological, organisation, met ...

begins on the star. As the star continues to cool, more complex life evolves, until plant-like organisms appear around 1000 BC. One lineage of these later became the first "animals", the earliest of these stealing seedpods from sessile organisms and some later lineages becoming

predator Predation is a biological interaction in which one organism, the predator, kills and eats another organism, its prey. It is one of a family of common List of feeding behaviours, feeding behaviours that includes parasitism and micropredation ...

s. Forward: Cheela physiology, pp. 292-296 The adults of the star's most intelligent species, called cheela (no flexion for gender or number), have about the same mass as an adult human. However, the extreme gravity of Dragon's Egg compresses the cheela to the volume of a

seed, but with a flattened shape about high and about in diameter. Their eyes are wide. Such minute eyes can see clearly only in

ultraviolet Ultraviolet radiation, also known as simply UV, is electromagnetic radiation of wavelengths of 10–400 nanometers, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight and constitutes about 10% of ...

and, in good light, the longest

wavelength In physics and mathematics, wavelength or spatial period of a wave or periodic function is the distance over which the wave's shape repeats. In other words, it is the distance between consecutive corresponding points of the same ''phase (waves ...

s of the

X-ray An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays. Roughly, X-rays have a wavelength ran ...

band.

Growth of civilization

In 2032, a cheela develops the race's first weapon and tactics while overcoming a dangerous predator. In November 2049 a human expedition to Dragon's Egg starts building orbital facilities. The rest of the story, including almost the whole history of cheela civilization, spans from 22 May 2050 to 21 June 2050. By humans' standards, a "day" on Dragon's Egg is about 0.2 seconds, and a typical cheela's lifetime is about 40 minutes. Forward: Cheela time scales, pp. 298-299 One clan organizes the first cheela agriculture, which brings predictable food supply but provokes grumbling about the repetitive work. Shortly after, a volcano emerges in the area, and the clan invents the first sledge to carry food from more distant sources. However, within a few generations the volcano pollutes the soil. One clan leads its population on a long, arduous journey to new territory that is fertile and uninhabited. Although one genius invents

mathematics Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many ar ...

to calculate and measure the band's food supply, the situation is desperate and the clan's survival depends on the self-sacrifice of the oldest members. Over the course of generations, the cheela come to worship the humans' spacecraft as a god, and their records of its satellites' movements cause them to develop writing. Several generations later, the cheela build an arena to accommodate thousands of worshippers. The humans notice this novel and very regular feature, conclude that intelligent beings inhabit the star, and use a laser to send simple messages. Cheela astronomers gradually realize that these are diagrams of the spaceships, its satellites and its crew – impossibly spindly creatures, who communicate with frustrating slowness, and are apparently almost 10% as long as the cheela's great arena. A cheela engineer proposes to send messages to the humans. As her attempts to transmit from the civilization's territory are ineffective, she travels to a mountain range to transmit directly under the spacecraft – conquering the fear of heights that is instinctive for flattened creatures living in 67 billion '' g''. The humans recognize her message and realize that the cheela live a million times faster than humans. Since real-time conversations are impossible, the humans send sections of the expedition's library. After reading an astronomy article, a cheela realizes that the supernova half a million human years ago created both their races. Many cheela generations later, but only a few hours for humans, cheelas develop gravity manipulation. A few generations later, a cheela spacecraft visits the human one. Although they still need extreme gravity fields to survive, the cheela can now control them precisely enough for both races to see each other face-to-face in safety. The cheela have decided that transferring their technologies, now far advanced of humans', would stunt humanity's development. However the cheela leave clues in several challenging locations, before going their separate ways.

Plot introduction

In ''Dragon's Egg'', Forward describes the history and development of a life form (the ''Cheela'') that evolves on the surface of a

(a highly dense collapsed star, about 20 km in diameter). This is the "dragon's egg" of the title, so named because from Earth it is observed to be near the tail of the constellation Draco ("the dragon"). The Cheela develop sentience and intelligence, despite their relative small size (an individual Cheela has approximately the volume of a sesame seed, but the mass of a human) and an intense gravity field that restricts their movement in the third dimension. Much of the book concerns the biologic and social development of the Cheela; a subplot is the arrival of a human vessel nearby the neutron star, and the eventual contact that is made between the humans and the Cheela. A major problem in this contact is that the Cheela live a million times more quickly than humans do; a Cheela year goes by in about 30 human seconds. The humans arrive when the Cheela are a savage, backward species, fighting rival clans in a subsistence-level society. Within a few human days, the equivalent of a few thousand Cheela years, the Cheela surpass the humans in technology, and the humans are affectionately called "the Slow Ones". Forward wrote a

sequel A sequel is a work of literature, film, theatre, television, music, or video game that continues the story of, or expands upon, some earlier work. In the common context of a narrative work of fiction, a sequel portrays events set in the same ...

to ''Dragon's Egg'', called '' Starquake'', which deals with the consequences of the Cheela developing space travel, and of a seismic disturbance that kills most of the Cheela on the surface of the neutron star.

Development history

Writer Robert L. Forward described being inspired by astronomer

Frank Drake Frank Donald Drake (May 28, 1930 – September 2, 2022) was an American astrophysicist and astrobiologist. He began his career as a radio astronomer, studying the planets of the Solar System and later pulsars. Drake expanded his interests ...

's suggestion in 1973 that intelligent life could inhabit neutron stars. Physical models in 1973 implied that Drake's creatures would be microscopic. By the time Forward was outlining the book, newer models indicated that the cheela would be about the size of sesame seeds. Later Forward found an earlier letter in which he discussed the idea of high-gravity life in the

with science fiction novelist

Hal Clement Harry Clement Stubbs (May 30, 1922 – October 29, 2003), better known by the pen name Hal Clement, was an American people, American science fiction writer and a leader of the hard science fiction subgenre. He also painted astronomically oriented ...

. Forward was the scientist and

Larry Niven Laurence van Cott Niven (; born April 30, 1938) is an American science fiction writer. His 1970 novel ''Ringworld'' won the Hugo Award for Best Novel, Hugo, Locus Award, Locus, Ditmar Award, Ditmar, and Nebula Award for Best Novel, Nebula award ...

the author in a tutorial on science fiction writing, and later that evening Forward and Niven agreed to collaborate on a novel on aliens on a neutron star. However, Niven soon found himself too busy with '' Lucifer's Hammer'', on which he was already co-writing with

Jerry Pournelle Jerry Eugene Pournelle (; August 7, 1933 – September 8, 2017) was an American scientist in the area of operations research and ergonomics, human factors research, a science fiction writer, essayist, journalist, and one of the first bloggers. ...

. Forward wrote the first draft himself, but several publishers suggested the story should be rewritten by Niven or Pournelle – who were still busy. Finally editor

Lester del Rey Lester del Rey (June 2, 1915 – May 10, 1993) was an American science fiction author and editor. He was the author of many books in the juvenile Winston Science Fiction series, and the fantasy editor at Del Rey Books, the fantasy an ...

provided comments that guided Forward through two rewrites, and del Rey then bought the novel. Forward described the work as "a textbook on neutron star physics disguised as a novel".

Publication history

In English: In other languages:

Literary significance and reception

Quotes from the cover pages: *"This is one for the real science-fiction fan. John Campbell would have loved it." –

Frank Herbert Franklin Patrick Herbert Jr. (October 8, 1920February 11, 1986) was an American science-fiction author, best known for his 1965 novel Dune (novel), ''Dune'' and its five sequels. He also wrote short stories and worked as a newspaper journalist, ...

*"A gripping and logical account of the evolution of intelligence in an alien race." –

Charles Sheffield Charles Sheffield (25 June 1935 – 2 November 2002), was an English-born mathematician, physicist, and science-fiction writer who served as a President of the Science Fiction and Fantasy Writers of America and of the American Astronautical ...

*"Bob Forward writes in the tradition of

's ''

Mission of Gravity Mission (from Latin 'the act of sending out'), Missions or The Mission may refer to: Geography Australia *Mission River (Queensland) Canada *Mission, British Columbia, a district municipality *Mission, Calgary, Alberta, a neighbourhood *Ok ...

'' and carries it a giant step (how else?) forward." –

Isaac Asimov Isaac Asimov ( ; – April 6, 1992) was an Russian-born American writer and professor of biochemistry at Boston University. During his lifetime, Asimov was considered one of the "Big Three" science fiction writers, along with Robert A. H ...

*"''Dragon's Egg'' is superb. I couldn't have written it; it required too much ''real'' physics." –

Science fiction critic

John Clute John Frederick Clute (born 12 September 1940) is a Canadian-born author and critic specializing in science fiction and fantasy literature who has lived in both England and the United States since 1969. He has been described as "an integral part ...

wrote that the novel "generates a sense of wonder that is positively joyous", saying it was "a romance of science". Chris Aylott described it as "a minor classic of science fiction – one that shows off both the best and worst elements of hard SF. ... the ideas definitely come first." He found the writing of the human cast dull, but appreciated Forward's ability to share his fascination with the cheela and to create communications between races that lived at vastly different speeds. Greg Costikyan reviewed ''Dragon's Egg'' in '' Ares Magazine'' #8 and commented that "''Dragon's Egg'' is interesting because it is the epitome of what "hard" science fiction is all about – extrapolation of the most interesting facets of scientific knowledge and speculation." Lambourne, Shallis, and Shortland consider that the research and detailed construction of the scenario make ''Dragon's Egg'' an excellent example of hard science fiction. Scientist Seth Shostak described the book's science as "fanciful but impossible to dismiss". John Pierce also regarded ''Dragon's Egg'' as

at its best, while Forward's later novel ''Martian Rainbow'' (1991) was the genre at its worst. Both novels have cardboard human characters, but this does not matter in ''Dragon's Egg'', where the focus is on the deeper personalities of the cheela characters. The novel even makes readers care about the fate of an unsympathetic cheela ruler, whose rejuvenation treatment fails catastrophically. Pierce wrote that the best works of this genre create a literary experience, but one of an unusual kind. Instead of offering a

metaphor A metaphor is a figure of speech that, for rhetorical effect, directly refers to one thing by mentioning another. It may provide, or obscure, clarity or identify hidden similarities between two different ideas. Metaphors are usually meant to cr ...

for a reality the reader already recognizes, they create new realities in which the reader is caught up. Robert Lambourne regards Forward, especially in ''Dragon's Egg'', as the successor of

, whose ''

'' exemplifies the most strongly science-based science fiction. In Lambourne's opinion hard science fiction authors like Clement, Forward and their successors have been relatively few but have strongly influenced both the genre's evolution and the public's perception of the genre.

Awards and nominations

''Dragon's Egg'' won the 1981

Locus Award The Locus Awards are an annual set of literary awards voted on by readers of the science fiction and fantasy magazine '' Locus'', a monthly magazine based in Oakland, California. The awards are presented at an annual banquet. Originally a poll ...

for First Novel and placed 14th in Locus' SF Novel category.

Sequel

In 1985, Forward published '' Starquake'', a sequel to ''Dragon's Egg''. Lambourne, Shallis and Shortland consider ''Starquake''s scientific background as rigorous as ''Dragon's Egg''s. In this novel, a starquake disrupts cheela civilization, while humans aboard the

spacecraft A spacecraft is a vehicle that is designed spaceflight, to fly and operate in outer space. Spacecraft are used for a variety of purposes, including Telecommunications, communications, Earth observation satellite, Earth observation, Weather s ...

''Dragon Slayer'' deal with their own problems.

References

Bibliography

External links

* {{Locus Award Best First Novel 1980 American novels 1980 debut novels 1980 science fiction novels American science fiction novels Debut science fiction novels Del Rey books Fiction about physics Fiction set around neutron stars Fiction set in 2032 Fiction set in 2050 Hard science fiction Novels about ageing Novels about extraterrestrial life Novels about spaceflight Novels about technology Novels by Robert L. Forward Novels set in the 2030s Novels set in the 2050s Speculative evolution Locus Award–winning works