• WordNet 3.6
    • n Pluto a small planet and the farthest known planet from the sun; it has the most elliptical orbit of all the planets "Pluto was discovered by Clyde Tombaugh in 1930"
    • n Pluto (Greek mythology) the god of the underworld in ancient mythology; brother of Zeus and husband of Persephone
    • n Pluto a cartoon character created by Walt Disney
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Webster's Revised Unabridged Dictionary
  • Interesting fact: Pluto is the only planet in our solar system that has not been visited by a spacecraft
    • Pluto The ninth planet of the Solar System, the smallest (5700 km radius) and most distant from the sun. The suggestion has been made that it more closely resembles a large close comet than a planet. Its orbit has an eccentricity of 0.248, larger than that of any other planet; it varies from 4.44 to 7.37 billion km distance from the sun. "Pluto is an oddball among its eight sister planets. It's the smallest in both size and mass, and has the most elliptical orbit. It moves in a plane tilted markedly away from the other planets' orbits. Moreover, Pluto is the only planet made almost entirely of ice."
    • Pluto (Class. Myth) The son of Saturn and Rhea, brother of Jupiter and Neptune; the dark and gloomy god of the Lower World.
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Century Dictionary and Cyclopedia
  • Interesting fact: Every 238 years, the orbits of Neptune and Pluto change making Neptune at times the farthest planet from the sun
    • n Pluto In Roman mythology, the lord of the infernal regions, son of Saturn and brother of Jupiter and Neptune. He is represented as an elderly man with a dignified but severe aspect, often holding in his hand a two-pronged fork. He was generally called by the Greeks Hades, and by the Romans Orcus, Tartarus, and Dis. His wife was Ploserpine. daughter of Jupiter and Ceres, whom he seized in the island of Sicily while she was plucking flowers, and carried to the lower world. See cut on following page.
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  • Karl Marx
    “All social rules and all relations between individuals are eroded by a cash economy, avarice drags Pluto himself out of the bowels of the earth.”
  • Jim Critchfield
    Jim Critchfield
    “Venus is now astrologically square with Pluto. That means there isn't a hip planet left.”


Webster's Revised Unabridged Dictionary
L., fr. Gr.


In literature:

And Dark will have a chance to get out to Pluto without an alarm going out.
"The World with a Thousand Moons" by Edmond Hamilton
Pluto shared the spacious building only with the brown horse belonging to Syphax.
"A Struggle for Rome, v. 3" by Felix Dahn
Triplanetary will find us, even if we take up an orbit beyond that of Pluto!
"Triplanetary" by Edward Elmer Smith
It was dark as the pits of Ganymede or the under-surface laboratories of Pluto.
"Shock Treatment" by Stanley Mullen
There were no settlements on Pluto.
"World Beyond Pluto" by C. H. Thames
She also had a big Newfoundland dog, named Pluto, for whom a cover was always laid at the dinner table.
"Famous Singers of To-day and Yesterday" by Henry C. Lahee
"Lives of the most Eminent Painters Sculptors and Architects" by Giorgio Vasari
But Pluto stands fire, and is not so easily frightened.
"On the Heights" by Berthold Auerbach
I suppose you came on the train, but should not be surprised to hear you started, like Pluto, from the earth.
"The Sword of Damocles" by Anna Katharine Green
They're gone to Pluto's kingdom, to provide A place for thee, and to attend thee there.
"A Select Collection of Old English Plays" by Robert Dodsley

In poetry:

Pluto's Consort bid thee rest!
Oeacus pronounce thee blest!
To her home thy shade consign,
Make Elysium ever thine!
"On The Death Of The Vice-Chancellor, A Physician (Translated From Milton)" by William Cowper
"Ah, Pluto, dost thou, one time lord of Styx
And Acheron make moan of night and cold?
Were we upon Olympus as of old
Laughter of thee would rock its festal height.
"The Dead Gods" by Cale Young Rice
Legions of cats from the alleys nocturnal.
Howling and lean in the glare of the moon,
Screaming the future with mouthings infernal,
Yelling the Garden of Pluto's red rune.
"The Cats" by Howard Phillips Lovecraft
Here let thy clemency, Persephone, hold firm.
Do thou, Pluto, bring here no greater harshness.
So many thousandfair are gone down to Avernus,
Ye might let one remain above with us.
"Prayer For His Lady’s Life" by Ezra Pound
"Now let me borrow,
For moments few, a temperament as stern
As Pluto's sceptre, that my words not burn
These uttering lips, while I in calm speech tell
How specious heaven was changed to real hell.
"Endymion: Book III" by John Keats
The Shades and Pluto's mansion follow hard upon the grip.
Once there you cannot throw the dice, nor taste the wine you sip;
Nor look on blooming Lycidas, whose beauty you commend,
To whom the girls will presently their courtesies extend.
"In The Springtime" by Roswell Martin Field

In news:

Terry Pluto's postgame scribbles from Cleveland Browns- Kansas City Chiefs.
Four towering lightning protection masts surround the pad, which also has been embarkation point for robotic NASA spacecraft flying missions to the moon, Mars, Jupiter and Pluto.
If Mickey Mouse were to be found in outer space an obvious place to look would be Pluto.
Forget Pluto, a hidden Mickey Mouse lives on Mercury.
Scientists on Wednesday (July 11) announced the discovery of a fifth moon orbiting Pluto in a major solar system find.
Terry Pluto believes Akron should hire Paul Winters as head coach.
On this basis Pluto, discovered in 1930, with a period around the sun of about 250 years, is not yet a year old.
Pluto's new moon could cause problems for space probe, says NASA (+video).
What should we name Pluto's new moon .
Scientists examining data from NASA's Hubble Space Telescope have spotted a fifth moon orbiting Pluto.
Hubble Telescope Finds a New Moon Orbiting Pluto.
Terry Pluto tackles your questions today at noon .
MIKE BROWN: How I Killed Pluto and Why It Had It Coming.
In the summer of 2006, the International Astronomical Union unceremoniously stripped Pluto of its planetary status, demoting it to the sniggle-inducing subcategory of "dwarf planet".
6 Years Ago Today, Pluto Was Demoted.

In science:

The same is the case in Pluto orbit where reorientation requirements demand three-axis control.
Testing for the Pioneer anomaly on a Pluto exploration mission
Bondo et al, “Preliminary Design of an Advanced Mission to Pluto”.
Testing for the Pioneer anomaly on a Pluto exploration mission
Pioneer 10 crossed Pluto’s orbit in 1983 and continued sending data until two years ago, when it was 82 AU from the Sun.
Origin of the Blueshift in Signals from Pioneer 10 and 11
All planets except Saturn and Pluto have been modelled.
Basic notions of dense matter physics: applications to astronomy
Spitzer. If its albedo is comparable with that of the other two objects, which would be consistent with Spitzer’s upper limit on its flux, it is about 20% larger than Pluto and would qualify for consideration as the tenth planet.
First Fruits of the Spitzer Space Telescope: Galactic and Solar System Studies