| Piú votate - Deep Sky Objects |
NGC-0104.jpgNGC 104 alias 47 Tucanae - Globular Star Cluster87 visite"...I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours..."
Mark, 11:24
(14 voti)
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G - 2.jpgAnother Universe behind our Universe?135 visiteHow fast do fundamental particles wobble? A surprising answer to this seemingly inconsequential question has come out of Brookhaven National Laboratory in New York, USA and may not only indicate that the Standard Model of Particle Physics is incomplete but also that our universe is filled with a previously undetected type of fundamental particle. Specifically, the muon, a particle with similarities to a heavy electron, has had its relatively large wobble under scrutiny since 1999 in an experiment known as g-2 (gee-minus-two), pictured above. The result has galvanized other experimental groups around the world to confirm it, and pressures theorists to better understand it. The rate of wobble is sensitive to a strange sea of virtual particles that pop into and out of existence everywhere. The unexpected wobble rate may indicate that this sea houses virtual particles that include nearly invisible supersymmetric counterparts to known particles. If so, a nearly invisible universe of real supersymmetric particles might exist all around us.
(14 voti)
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NGC 0001 and 0002.jpgNGC 1 and 256 visite"Professor does cold exist?"
The professor replied "Of course it exists. Have you never been cold?"
The students snickered at the young man's question.
The young man replied, "In fact sir, cold does not exist. According to the laws of physics, what we consider cold is in reality the absence of heat. Everybody or object is susceptible to study when it has or transmits energy, and heat is what makes a body, or matter, have or transmit energy.
Absolute zero (- 460 degrees F) is the total absence of heat. Cold does not exist. We have created this word only to describe how we feel if we have no heat".
The student continued. "Professor, does darkness exist?"
The professor responded, "Of course it does."
The student replied, "Once again you are wrong sir. Darkness does not exist either. Darkness is in reality the absence of light. Light we can study, but not darkness. In fact we can use Newton's prism to break white light into many colors and study the various wavelengths of each color.
You cannot measure darkness. A simple ray of light can break into a world of darkness and illuminate it. How can you know how dark a certain space is? You measure the amount of light present. Isn't this correct? Darkness is a term used by man to describe what happens when there is no light present".
(14 voti)
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NGC-6210.jpgNGC 6210 - Planetary Nebula64 visite"...More things change, the more they stay the same..."
dal film "Escape from L.A."
(14 voti)
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SNR-0103.jpgSNR 0103 - Supernova Remnant69 visite"...The poet is the priest of the invisible..."
Wallace Stevens (1879-1955) - "Adagia"
(14 voti)
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V-838_Mon-04.jpgV 838 Monocerotis: the Nebula is "growing up"!61 visite"...Gli uomini sono sospesi tra un prima ed un dopo che chiamano Vita, al di fuori della quale sentono che esiste qualcosa al di la di sè stessi, a cui neanche la loro straordinaria capacità di pensiero ha consentito di arrivare a sfiorarne la Natura. Ciò non di meno, di questo qualcosa - che per comodo chiameremo Dio - sappiamo quanto basta da non poterne ignorare la forza.
C'è chi Lo vede nell'Universo, chi nell’astrattezza del nostro pensiero e chi, ancora, nella coscienza di sé e del mondo che l‘uomo possiede..."
Giuseppe Spina - "Dio"
(14 voti)
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SmallMagellanCloud.jpgSmall Magellanic Cloud, NGC 362 and 47 Tucanae72 visiteDa "Astronomy Picture of the Day" del 17 Giugno 2005:"Portuguese navigator Ferdinand Magellan and his crew had plenty of time to study the southern sky during the first circumnavigation of planet Earth.
As a result, two celestial wonders easily visible for southern hemisphere skygazers are known as the Clouds of Magellan. These cosmic clouds are now understood to be dwarf irregular galaxies, satellites of our larger spiral Milky Way Galaxy. The Small Magellanic Cloud pictured above actually spans 15.000 LY or so and contains several hundred million stars. About 210.000 LY distant in the constellation Tucana, it is the forth closest of the Milky Way's known satellite galaxies, after the Canis Major and Sagittarius Dwarf galaxies and the Large Magellanic Cloud. This gorgeous view also includes two foreground globular, star clusters NGC 362 (top left) and 47 Tucanae. Spectacular 47 Tucanae is a mere 13.000 LY away and seen here to the right of the Small Magellanic Cloud".
(14 voti)
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HD 209458b.jpgPlanet HD 209458b119 visiteDa "NASA - Picture of the Day" del 5 Aprile 2005:"Light emitted by a planet far beyond our Solar System has been identified for the first time. The planet, illustrated in the above drawing, had its light detected by comparing the brightness of only the parent star, when the planet was behind the star, to the light emitted when both the planet and its parent star were visible. The Earth-orbiting Spitzer Space Telescope made the observation in infrared light, where the intrinsic glow of the planet outshines the light it reflects from its central star. The direct observation of light allowed a measurement of both the temperature and size of the planet: HD 209458b. Planet HD 209458b was confirmed to be larger than expected for its mass and on an orbit around its parent star that was unexpectedly close to a circle".
(14 voti)
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Stephan_s_Quintet-PIA04201_modest.jpgGalaxy Group "Stephan's Quintet"58 visite"...Ho visto una lumaca scivolare...
Lungo il filo...
Di un rasoio.
Ecco il mio sogno.
Il mio incubo.
Scivolare...Strisciare...
Lungo il filo...
Di un rasoio.
E sopravvivere".
Dal film "Apocalypse Now"
(14 voti)
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RCW 38.jpgRCW 38 Star Cluster in Vela87 visite"...Brevis a Natura nobis Vita data est; at memoria bene redditae Vitae sempiternae..."
(Cicerone)
"...Breve è il Tempo (Vita) concessoci dalla Natura; ma eterna è la memoria di una Vita spesa bene..."
(14 voti)
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NGC-6293-6.jpgNGC 6293 - The Helix Nebula (HD)75 visite"...Il progresso della vera Scienza si realizza, come la Storia dimostra ampiamente, attraverso salti intuitivi...La Verità, si badi bene, non è sempre dimostrabile..."
Edgar Allan Poe - "Eureka"
(14 voti)
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NGC-6334-00.jpgNGC 6334 - The "Cat-Paw" Nebula71 visite"...Qui sua metitur pondera, ferre potest..."
(Marziale)
"...(solo) chi conosce il proprio peso, riesce a portarlo..."
(14 voti)
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