aurora

Share on Facebook Share on Twitter Email
(ə-rôr'ə, ə-rōr'ə) pronunciation
n., pl., -ras, or -rae (ə-rôr'ē, ə-rōr'ē).
  1. A luminous atmospheric phenomenon appearing as streamers or bands of light sometimes visible in the night sky in northern or southern regions of the earth. It is thought to be caused by charged particles from the sun entering the earth's magnetic field and stimulating molecules in the atmosphere.
  2. The dawn.

[Middle English, dawn, from Latin aurōra.]

auroral au·ro'ral or au·ro're·an (-ē-ən) adj.
aurorally au·ro'ral·ly adv.


Luminous phenomenon of the upper atmosphere that occurs primarily at high latitudes. Auroras in the Northern Hemisphere are called aurora borealis, or northern lights; in the Southern Hemisphere they are called aurora australis, or southern lights. Auroras are caused by the interaction of energetic particles (electrons and protons) from outside the atmosphere with atoms of the upper atmosphere. Such interaction occurs in zones surrounding the Earth's magnetic poles. During periods of intense solar activity, auroras occasionally extend to the middle latitudes.

For more information on aurora, visit Britannica.com.

An optical manifestation of a large-scale electrical discharge process which surrounds the Earth. The discharge is powered by the so-called solar wind-magnetosphere generator. The Sun continuously blows out its upper atmosphere, the corona, with a supersonic speed. This fully ionized and magnetized gas flow interacts with the Earth's magnetic field, resulting in a comet-shaped cavity (the magnetosphere) carved around the Earth, while the lines of force of the Earth's magnetic field and of the solar wind magnetic field interconnect. Electric power of as much as 1012 W is generated as the solar wind blows across the interconnected field lines near the comet-shaped boundary. A part of the electric current (carried mainly by electrons) thus generated flows between the magnetospheric boundary and an annular, ring-shaped region of the polar upper atmosphere along the lines of force of the Earth's magnetic field. See also Magnetosphere.

As these electrons descend toward the Earth, they themselves develop an electrical potential drop of the order of a few kilovolts along the lines of force. As a result, the current-carrying electrons acquire energies of as much as a few kiloelectronvolts, sufficient to ionize and excite a few hundred atoms and molecules before they are stopped by the atmosphere at an altitude of about 60 mi (100 km).

Two ring-shaped glows, one in each hemisphere, are produced by upper atmospheric atoms and molecules which emit their own characteristic light after colliding with the current-carrying electrons. The most common light of the aurora (the greenish-white light) comes from excited oxygen atoms. Excited and ionized molecular nitrogen adds several band emissions. Imaging devices aboard satellites have successfully “photographed” both the northern and southern auroral rings. See also Scientific satellites.

From a point on the ground, only a small part of the ring-shaped glow can be observed. It is seen as a curtain-shaped glow, stretching from horizon to horizon across the sky (see illustration). The bottom of the auroral curtain is sharply bounded and is located at about 60 mi (100 km) altitude. The upper boundary diffuses and extends to well above 180 mi (300 km).

Two curtain-shaped auroras stretching across the sky near Fairbanks, Alaska. (<i>Courtesy of Lee Snyder</i>)
Two curtain-shaped auroras stretching across the sky near Fairbanks, Alaska. (Courtesy of Lee Snyder)

The aurora becomes active during geomagnetic storms which occur often about 40 h after an intense solar flare. This is because the efficiency of the solar wind-magnetosphere generator becomes high and variable when the solar wind becomes gusty after a solar flare. During a great magnetic storm, the auroral ring expands from its usual latitude of about 67 to 50° or a little less. It is on such an occasion when the aurora can be seen widely across the continental United States. See also Atmosphere; Atomic structure and spectra; Geomagnetism; Ionosphere; Plasma (physics).


Top

noun

    The first appearance of daylight in the morning: cockcrow, dawn, dawning, daybreak, morn, morning, sunrise, sunup. See start/end.

A diffused glow, bright patches, streamers, arches, or dancing color patterns that are frequently seen at high geographic latitudes mostly above 60°north or south latitude. The aurora seen in the Northern Hemisphere is referred to as aurora borealis, or the northern lights, and that in the Southern Hemisphere is known as aurora australis, or the southern lights. The phenomenon is associated with sunspot activity. The auroras are important in radio communications, because they affect the propagation of electromagnetic waves in high-frequency and very high frequency ranges. Signals may be returned to earth at much higher frequencies than usual when the aurora are active. The unusual solar activity that causes aurora, however, also can degrade normal ionospheric propagation. Sometimes, the disturbance is so pronounced that even wire circuits are disrupted by fluctuating magnetic fields.

Random House Word Menu:

categories related to 'aurora'

Top
Random House Word Menu by Stephen Glazier
For a list of words related to aurora, see:
  • Celestial Phenomena and Points - aurora: display of changing colored light high in atmosphere at arctic and antarctic latitudes, caused by charged particles in Earth’s magnetic field interacting with upper atmospheric gases
  • Orange


Top
Aurora
Aurorabyrne.png
Aurora. Art by John Byrne.
Publication information
Publisher Marvel Comics
First appearance X-Men (vol. 1) #120 (April 1979)
Created by Chris Claremont
John Byrne
In-story information
Alter ego Jeanne-Marie Beaubier
Species Human Mutant
Team affiliations Alpha Flight
Beta Flight
Brotherhood of Mutants
Gamma Flight
The 198
The Children
Weapon X
X-Men[1]
Abilities Flight
Superhuman speed
Superhuman durability
Light generation/manipulation
Light projection

Aurora (Jeanne-Marie Beaubier) is a fictional character, a Canadian superheroine in the Marvel Comics universe. She is the twin sister of Northstar and the former lover of Sasquatch. She has also been in a relationship with Wild Child.

Contents

Publication history

Aurora first appeared in X-Men (vol. 1) #120 as a member of Alpha Flight.

Fictional character biography

Jeanne-Marie Beaubier was born in Montréal, Québec, Canada. She and her twin brother Jean-Paul were separated in infancy after their parents died. Jean-Paul was adopted by Mr. and Mrs. Louis Martin, who were cousins of his mother. The Martins could not afford to adopt Jeanne-Marie as well and arranged for Jeanne-Marie to be raised at Madame DuPont's School for Girls in LaVelle, Quebec, a reactionary religious school. Soon afterward, the Martins moved to Northern Quebec. The Martins were killed in an accident several years later and Jean-Paul was placed in a foster home, unaware that he had a sister.

Extremely nervous and introverted, Jeanne-Marie Beaubier was miserable at Madame DuPont's School and at the age of thirteen, she attempted suicide by throwing herself from the roof of one of the school's buildings. Instead of falling to her death, Beaubier discovered that she could fly at great speed. Unaware that she was a mutant, the deeply religious Beaubier believed that her flight was the result of a divine miracle. The next morning, she explained to the school's headmistress what she believed had happened. Believing the young girl to be guilty of blasphemy, the headmistress had Beaubier severely disciplined. This incident (and possibly other abuse) triggered a dissociative identity disorder in Jeanne-Marie; a second personality, extroverted and far more uninhibited, emerged. Under the influence of this second personality, Beaubier secretly left the school that same night. Returning three days later, she had no memory of where she had been or what she had done and she was again physically punished. The resulting trauma was so great that Beaubier repressed her second personality.

Alpha Flight

Five years later, Beaubier's application to become a teacher of history and geography at the school was accepted. By this time, Beaubier had adjusted to life at the school and her everyday personality was that of a prim, proper, repressed woman. The same night that her application was accepted, her second personality re-emerged and she left to enjoy herself in Montreal. Confronted by muggers, she knocked one unconscious by moving at superhuman speed (this was the first time that she had used her superhuman powers in five years). The second mugger was halted by Wolverine, who had witnessed the attempted assault. Recognizing that Beaubier had superhuman powers, Wolverine invited her to go to Ottawa to meet James MacDonald Hudson, who was organizing a team of superhumanly powerful agents for the Canadian government's Department H. Hudson accepted her as a recruit and reunited her with her brother. After a period of training, both Beaubier siblings joined the team that Hudson created, Alpha Flight, under the code names Aurora and Northstar.[2]

On Alpha Flight's first mission, Aurora aided in combating the X-Men to capture Wolverine.[3] With Northstar, she battled Deadly Ernest.[4] She later recounted how she developed her superhuman powers and developed her Aurora personality, and how Wolverine recruited her into Alpha Flight,[5] as well as how she met Northstar.[6] Aurora later had a falling out with her brother, and upon her wish to separate herself from her brother, her powers were altered by Walter Langowski.[7] Aurora was captured by Gilded Lily, but was rescued by Sasquatch, who began to suspect that she was manifesting a third personality.[8] With Northstar, she battled Pink Pearl.[9]

She was later temporarily cured of her multiple personalities. Alongside the X-Men and Alpha Flight, she battled Loki.[10] She was again attacked by Gilded Lily.[11] Aurora was captured by Box, who had gone insane, but was later rescued by Alpha Flight.[12] Loki deceived Aurora into believing that her mother had been an Asgardian Light Elf. She journeyed to Alfheim, and seemingly expended all of her superhuman power in curing Northstar of a fatal illness.[13] She then joined a convent and dropped out of sight for a while.[14]

Jean-Marie eventually left the convent and was transported to Asgard, and helped rescue Northstar in Alfheim. She discovered that she had regained her superhuman powers and rejoined Alpha Flight.[15] Aurora soon discovered that she could now generate a light that bestowed inner peace in others.[16] With Alpha Flight and the Fantastic Four, she contended against Headlok.[17] Headlok mentally manipulated her, causing her to revert to her original split personality, and she then killed Headlok.[18] She soon thereafter had a rematch with Pink Pearl.[19] Eventually, the original incarnation of Alpha Flight disbanded.[20]

The Jeanne-Marie personality confronts Aurora. Art by John Byrne.

Aurora has suffered from dissociative identity disorder for some time: Jeanne-Marie represented her more prim and proper persona while Aurora represented Jeanne-Marie's more outgoing, repressed personality traits. The personalities were later merged into one relatively healthy personality although her sanity has deteriorated in recent years and they split again.[volume & issue needed]

Jeanne-Marie underwent further personality changes. For a time, her "Aurora" and "Jeanne-Marie" personae each manifested traits of the other while nevertheless remaining distinctly separate personalities. She later manifests a third personality which is basically Aurora's, but with a greater sense of responsibility than before.[volume & issue needed]

At one point, Aurora and Northstar were retconned to be half-human, half-elf;[10] however, this development was itself retconned away,[volume & issue needed] and the twins are known to be human mutants, as they were originally intended.

Aurora, deeply in love and distraught with the departure of Wildheart (who had left to join X-Factor when his mutation reverted his handsome appearance to a bestial one, fearing rejection from Aurora), left to follow him, with the intention that if she could not have him, "no one could."[volume & issue needed] During her pursuit of Wild Child, Mystique intervened, taking on the form of his Wildheart persona to try to stop Aurora from killing him.[volume & issue needed] Kyle told Aurora that Mystique was lying, and Aurora, her mind already distraught, fainted with the overwhelming strain. Kyle vowed to help her. Northstar and Puck arrived to return Jeanne-Marie to Canada.[volume & issue needed]

Resurfacing and rehabilitation

In the events leading up her reappearance in Weapon X Vol. 2, Aurora's mental health continues to deteriorate and she is later turned into a mind controlled agent of Weapon X. She also engages in an abusive relationship with the Weapon X director, Malcolm Colcord, who frequently beat her.[21] Aurora manages to retaliate against her mind-control by creating a third personality that was unaffected by her situation. She attacks Colcord and manages to escape.[22] In her next appearance in X-Men (Vol. 2) Aurora's mental state becomes unstable to the point that all her personalities agree that suicide is the best solution.[23] However, she is stopped by the arrival of Northstar, who is under the control of the Children of the Vault, a mysterious group of newly emerged superhumans who seek to destroy mutants, viewing them to be their competition for dominance of the planet. One of the Children, Serafina, places the twins under their control, largely repairing Aurora's fragile psyche, boosting the twins powers and altering them so that they can generate not only light when in contact with each other, but heat as well.

The twins are sent on a mission to attack the X-Men and retrieve Sabretooth for the Children of the Vault. The twins are able to defeat several of the X-Men and New X-Men until Mystique is able to exploit Aurora's shattered psyche by taking on her image. Iceman manages to incapacitate Aurora while Cable subdues Northstar.[23]

The X-Men take Northstar and Aurora to the S.H.I.E.L.D. Helicarrier in an attempt to fix the mental damage inflicted on the twins. Using their V.R. equipment the X-Men allowed the twins to relive their lives at an accelerated pace. The process was interrupted near the end of the session by Exodus, creating a telepathic connection between the twins. Using each other's emotional support, they manage to face their inner personal turmoils and regain control of their minds. Aurora and Northstar also gain a higher level of control over their powers, which they use to save Rogue from the Acolyte known as Frenzy.[23] They later reappear in the mini-crossover series Secret Invasion: X-Men, joining the X-Men when the Skrull invasion reaches San Francisco.[24]

Aurora next appears in Uncanny X-Men, having formed a snowsporting company with Northstar, Team Northstar Extreme Snowsports. Aurora appears to be living a relatively normal life since regaining control of her mind, and is the joint CEO of the company. She is contacted by Wolverine when he wishes to extend an invitation to Northstar to join X-Men on Utopia.[25]

During one of Aurora's therapy sessions to deal with her disorder, she is given a device to wear on her head for tests, when in actuality, her therapist was bribed by Norman Osborn to use it on her so he could speak with her more dark and violent personality about joining his Dark X-Men. Jeanne-Marie, though, does not care to take orders from anyone, least of all someone who is just as broken as herself, and goes to leave, before he turns the device on her again, saying he doesn't take no for an answer. However, Aurora brings up another personality to combat the guards, and brings up more for each time the device is used on her, before she is able to turn it on Osborn himself and walk away.[26]

During the Chaos War storyline, Aurora alongside Northstar, Sasquatch, and Snowbird are reunited with a resurrected Guardian, Vindicator, Shaman, and Marrina Smallwood.[27]

Powers and abilities

Northstar and Aurora. Art by Leinil Francis Yu.

Aurora has the powers of flight and superhuman speed and reflexes (theoretically able to approach light-speed. This has never been attempted since if any being or amount of matter were to approach the speed of light in our solar system, it would wreak devastating havoc on the gravitational forces holding our system together). The greater her increase in speed, the more durable her body becomes, but this ability has not been measured.

She also has super-human levels of endurance and stamina that allows her to maintain her super-speed. In an early issue of Alpha Flight, Northstar reveals to readers that Aurora has greater endurance and can fly longer, while he can fly faster in the same period of time.[28] Her strength and reaction time are above-average for a woman of her age and exercise level, however, Aurora usually doesn't rely on her physical strength while battling opponents and, instead, uses super-speed tricks, like flying with someone at great speed until they pass out from lack of oxygen or pummeling them with hundreds of punches a second until they succumb. Aurora also uses her super speed to perform stunts such as creating a cyclone by running in circles, running up walls and across water, and she could breathe while traveling at subsonic speeds. If Aurora wanted to travel with another person faster than 60 MPH, the person would need a breathing apparatus to keep from asphyxiating.

Originally, while in physical contact with her brother, usually while holding hands, the pair could emit bursts of brilliant white light with an average flash equal in intensity of one million candela (one candela being equal to the amount of light created by one candle). It was generally used to blind their opponents, but with the minor drawback that they were not able to control its intensity. Yet after a serious falling-out with her brother, she had her powers altered by Walter Langkowski (Sasquatch), her lover at the time, to enable her to produce light independently, although, while still being blinding, with much less intensity.[volume & issue needed] It also significantly limited her speed to that of one to two times the speed of sound.

It was later revealed that due to a side effect of the treatment, if she and her brother had even the briefest physical contact that it would "cancel out" both of their abilities for a brief period and sometimes created a physical, incapacitating shock.[volume & issue needed] The treatment had the added bonus of "cloaking" her from mutant-detection devices, such as the Sentinels, allowing her more of a chance of living a normal life, free from persecution. After the events in Asgard, her post-treatment bursts of light now had the added ability to temporarily bestow inner peace to all who saw it, but it is not known if she has retained this new power.[volume & issue needed]

It appears the treatment was undone in recent years, returning her abilities to their original state.[volume & issue needed] Due to the machinations of Serafina, it appears that Aurora and Northstar can now generate explosive thermal energy on contact with each other as well.[volume & issue needed]

Aurora is moderately skilled in hand-to-hand combat using a style utilizing her superhuman speed, and received coaching from Puck and Wolverine.

Aurora's powers alter in various ways when her different personalities are dominant.

Other versions

Age of Apocalypse

In the Age of Apocalypse, Northstar and Aurora were part of Mister Sinister's Elite Mutant Force (E.M.F.) and, as such, were assigned to patrolling the breeding pens. The siblings fully embraced their beliefs of mutant superiority and seemed to take great pleasure in punishing those prisoners who acted up or tried to escape. When the E.M.F.’s leader, Cyclops, switched sides, secretly helping some inmates to escape, he was caught in the act by the speeding twins. However, both of them were defeated by Cyclops and the prisoner he was helping to escape, which happened to be Polaris.[volume & issue needed] When the series was revisited for the 10 year anniversary, it was revealed that following the fall of Apocalypse's regime, the Beaubiers became fugitives until they were killed by Weapon X and Kirika.[29][30]

Marvel Zombies

In the Marvel Zombies comics set in the universe of Earth-2149, the zombified Alpha Flight attack the X-Men and are eventually killed by Magneto.[volume & issue needed] Aurora is seen in a panel of Marvel Zombies Dead Days attacking the X-Man Storm alongside her brother Northstar. The two are killed by Magneto only moments later.[volume & issue needed]

Weapon X: Days of Future Now

In the Weapon X: Days of Future Now storyline, Aurora is one of the mutants that Wolverine recruits in order to resurrect the X-Men after all except himself and Angel were killed by Weapon X under Malcolm Colcord. When Wolverine comes for her she is living as Jeanne-Marie in a nunnery in Lourdes, France. She agrees and mentions the death of her brother as a reason for joining him. However, Wolverine isn't really interested in recruiting her as Aurora or her normal personality of Jeanne-Marie. He comes to recruit her third personality and slaps her until it surfaces. When it does, she takes off her nun's hood and her robes to resemble her Aurora outfit. She joins Wolverine's new, more violent X-Men along with Juggernaut, Deadpool, Mystique, Sunfire, Archangel, and Agent Zero.[volume & issue needed]

She is killed along with Mystique, Sunfire, and Deadpool, when it is revealed that Agent Zero has been made into a sleeper agent for Weapon X through the use of Mesmero's mutant hypnotic abilities. He ambushes his teammates in their base, killing or severely wounding them with gunfire and his concussive energy blasts.[volume & issue needed] Eventually, he takes his own life when he manages to break free of Weapon X's control, moments before killing Wolverine.[volume & issue needed]

Earth X

In Earth X, Aurora is still a member of Alpha Flight. However, she was killed alongside her team by the Tong of Creel.[31]

House of M

In the alternate reality created by the Scarlet Witch known as House of M, a woman similar to Aurora is seen with Northstar who is an agent of S.H.I.E.L.D, responsible for training a squad of young mutants and superhumans in the agency's junior training squad program. However, she is only seen briefly.[volume & issue needed]

Ultimate Aurora

An Ultimate version of Aurora makes her debut in Ultimate X-Men #94 as part of Alpha Flight. Like her mainstream counterpart, she is the sister of Northstar. The two seem to share a distant relationship, because Aurora still works for Department H, somewhere that Jean-Paul ran from claiming they were crazy. She is the one who physically takes her brother captive. Her power seemed to be speed based, but, according to her and due to being enhanced by the Mutant Growth Hormone known as Banshee, she is faster than light; something which she proved by being able to remove Colossus' grip on their jet wthout him being aware of it.[volume & issue needed] Later, when the X-Men attack their base to rescue Northstar, she is quickly taken down by Dazzler, who has also enhanced her abilities with Banshee.[volume & issue needed]

In other media

Television

  • Aurora appeared in the X-Men animated series episodes "Slave Island" and "Repo Man" voiced by Jennifer Dale. In the cartoon, Aurora possessed the ability to fly and generate a blinding light when she slapped hands with her brother Northstar.[citation needed]

References

  1. ^ Official Handbook of the Marvel Universe A to Z, vol. 13 (2010) Marvel Comics
  2. ^ X-Men (vol. 1) #120 (Apr. 1979) Marvel Comics
  3. ^ Uncanny X-Men #120-121
  4. ^ Alpha Flight (vol. 1) #7-8
  5. ^ Alpha Flight #9
  6. ^ Alpha Flight (vol. 1) #10
  7. ^ Alpha Flight (vol. 1) #17
  8. ^ Alpha Flight (vol. 1) #20-21
  9. ^ Alpha Flight (vol. 1) #22
  10. ^ a b X-Men and Alpha Flight #1-2
  11. ^ Alpha Flight Annual (vol. 1) #1
  12. ^ Alpha Flight (vol. 1) #46
  13. ^ Alpha Flight (vol. 1) #50
  14. ^ Alpha Flight (vol. 1) #64
  15. ^ Alpha Flight (vol. 1) #81-82, 85
  16. ^ Alpha Flight (vol. 1) #88-89
  17. ^ Alpha Flight (vol. 1) #93-96
  18. ^ Alpha Flight (vol. 1) #102-104
  19. ^ Alpha Flight (vol. 1) #105
  20. ^ Alpha Flight (vol. 1) #130
  21. ^ Weapon X Vol. 1: The Draft
  22. ^ Weapon X: Days of Future Now
  23. ^ a b c X-Men (vol. 2) "Supernovas" (August 2007) Marvel Comics
  24. ^ Secret Invasion: X-Men #2
  25. ^ Uncanny X-Men #508
  26. ^ Dark X-Men: The Beginning #3
  27. ^ Chaos War: Alpha Flight #1
  28. ^ Alpha Flight #1 (1983)
  29. ^ X-23 on Earth-616
  30. ^ X-Men: Age of Apocalypse #2 (May 2005) Marvel Comics
  31. ^ Universe X #2

External links


Top

Dansk (Danish)
n. - polarlys

idioms:

  • aurora australis    sydlys
  • aurora borealis    nordlys

Nederlands (Dutch)
Romeinse godin van de dageraad, dageraad, poollicht

Français (French)
n. - aurore

idioms:

  • aurora australis    aurore australe
  • aurora borealis    aurore boréale

Deutsch (German)
n. - Morgenröte, Polarlicht

idioms:

  • aurora australis    Südlicht
  • aurora borealis    Nordlicht

Ελληνική (Greek)
n. - Ηώς, σέλας, (μτφ.) ηώς, χαραυγή

idioms:

  • aurora australis    νότιο σέλας
  • aurora borealis    βόρειο σέλας

Italiano (Italian)
aurora, aurora boreale

idioms:

  • aurora australis    aurora australe
  • aurora borealis    aurora boreale

Português (Portuguese)
n. - aurora (f), alvorada (f)

idioms:

  • aurora australis    aurora austral
  • aurora borealis    aurora boreal

Русский (Russian)
Аврора, рассвет, северное полярное сияние

idioms:

  • aurora australis    южное полярное сияние
  • aurora borealis    северное полярное сияние

Español (Spanish)
n. - rosicler, aurora

idioms:

  • aurora australis    aurora austral
  • aurora borealis    aurora boreal

Svenska (Swedish)
n. - sken, morgonrodnad

中文(简体)(Chinese (Simplified))
曙光, 奥罗拉, 极光

idioms:

  • aurora australis    南极光
  • aurora borealis    北极光

中文(繁體)(Chinese (Traditional))
n. - 曙光, 奧羅拉, 極光

idioms:

  • aurora australis    南極光
  • aurora borealis    北極光

한국어 (Korean)
n. - 여자 이름, 오로라(새벽의 여신), 처음, 새벽

日本語 (Japanese)
n. - オーロラ

idioms:

  • aurora australis    南極光
  • aurora borealis    北極光

العربيه (Arabic)
‏(الاسم) فجر‏

עברית (Hebrew)
n. - ‮זוהר קוטבי, שחר (ספרותית)‬


Post a question - any question - to the WikiAnswers community:

Copyrights:

Mentioned in

aurora polaris (geophysics)
aurora australis (geophysics)
aurora borealis (geophysics)
aurora gating (electronics)
auroral propagation (communications)