| Piú viste - The Universe Inside |
CollapsedTowers.jpgIn Memoria64 visite"...Un mio Amico mi disse, un pò di tempo fa, che, prima di iniziare la Scalata verso il Cielo, bisogna fare Giustizia in Terra.
Bisogna dare pane agli affamati.
Conforto agli sventurati.
Gioia agli infelici.
Salute e Serenità ai poveri ed ai malati senza speranza.
Casa agli abbandonati.
E memoria ai dimenticati.
Perchè, lui mi disse, non c'è posto per l'Uomo "out there", fra le Stelle, sintanto che la Miseria, la Fame e l'Ingiustizia saranno Padrone della Terra.
Eravamo nel Luglio 2001.
Oggi, il mio Amico non c'è più. Ma le sue Parole, come vedete, sono rimaste.
Io lo ricordo con infinito Affetto, per la Compagnia, l'Amicizia ed i preziosi consigli che mi ha dato.
Oggi, in questo giorno di Memoria per il Mondo, le sue parole acquisiscono un "senso" ancora - se possibile - più profondo.
Se non saremo capaci di stabilire un minimo di Giustizia sulla Terra, non avremo alcun futuro al di fuori di Essa...".
Paolo C. FiengaMareKromium
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The_Sun_over_Stonehenge.jpgSunrise Solstice at Stonehenge 64 visitenessun commentoMareKromium
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Fake_Sunrise.jpgTotally Beautiful, but totally Fake64 visiteImmagine pubblicata sulla prestigiosa Rubrica "NASA - Astronomy Picture of the Day" il giorno 10 Ottobre 2011. Si tratta di un esempio ulteriore di come il "fake-ben-fatto" (e pure assai suggestivo) abbia un successo ed un seguito sempre più eclatanti.
Noi, che pure adoriamo il Genere "Fantasy" (al quale questa foto appartiene per non meno del 99%) umilmente, dissentiamo e diciamo che un'immagine come questa (in sè - lo ripetiamo a chiare lettere - davvero molto affascinante e particolare) meritava senz'altro un riconoscimento, ma NON quello del "NASA - Picture of the Day". MareKromium
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Sunrise.jpgCrepuscular Rays Over Utah63 visiteDa "NASA - Picture of the Day", del 31 Agosto 2005:"What could cause such rays of dark? Dark sky rays were caught in spectacular fashion earlier this month above Utah, USA. The cause is something surprisingly familiar: shadows. Clouds near the horizon can block sunlight from reflecting off air, making columns outward from the Sun appear unusually dark. Cloud shadows can be thought of the complement of the more commonly highlighted crepuscular rays, also visible above, where sunlight pours though cloud holes. Sometimes, on the opposite side of the sky, anticrepuscular rays can also be seen".
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Aurora_Borealis-Coronal_Aurora-sep11aurora_moussette_f.jpgNorthern Lights over Canada63 visiteSo far, the Aurora Borealis - or "Northern Lights" - have made some remarkable visits to September's Skies. The reason, of course, is the not-so-quiet Sun. In particular, a large solar active region now crossing the Sun's disk has produced multiple, intense flares and a large Coronal Mass Ejection (CME) that triggered wide spread auroral activity just last weekend. This colorful example of spectacular curtains of aurora was captured with a fish-eye lens in skies over Quebec, Canada, on September 11, 2005.
Also featured is the planet Mars, the brightest object above and left center. Seen near Mars (just below and to the right) is the tightly knit Pleiades star cluster.
Although they can appear to be quite close, the Northern Lights actually originate at extreme altitudes, 100 Km or so above the Earth's surface.
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TwentythreeBC.jpg23 Million Years B.C.63 visiteMareKromium
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Counter-glow.jpgThe Gegenshein (or "Counter Glow") Effect in Pisces63 visiteDa "NASA - Picture of the Day", del 26 Dicembre 2006:"If you look carefully enough, you can even see the glow of the Sun in the opposite direction. At night this glow is known as the Gegenschein (German for "Counter Glow"), and can be seen as a faint glow in an extremely dark sky. The Gegenschein is sunlight back-scattered off small interplanetary dust particles. These dust particles are millimeter sized splinters from asteroids and orbit in the ecliptic plane of the planets.
Pictured above, the gegenschein is seen superposed toward the constellation of Pisces. The Gegenschein is distinguished from Zodiacal Light by the high angle of reflection. During the day, a phenomenon similar to the Gegenschien - called "The Glory" - can be seen in reflecting air or clouds opposite the Sun from an airplane".MareKromium
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Voyagers-01.gifTowards the "Terra Incognita" (2)63 visiteIt is appropriate to consider the VIM as three distinct phases: the termination shock, heliosheath exploration, and interstellar exploration phases. The two Voyager spacecraft began the VIM operating, and are still operating, in an environment controlled by the Sun's magnetic field with the plasma particles being dominated by those contained in the expanding supersonic solar wind. This is the characteristic environment of the termination shock phase. At some distance from the Sun, the supersonic solar wind will be held back from further expansion by the interstellar wind. The first feature to be encountered by a spacecraft as a result of this interstellar wind/solar wind interaction will be the termination shock where the solar wind slows from supersonic to subsonic speed and large changes in plasma flow direction and magnetic field orientation occur.
Passage through the Termination Shock ends the Termination Shock Phase (TSP) and begins the Heliosheath Exploration Phase (HEP). Voyager 1 in 2004 completed the TSP of the mission when the spacecraft was 94 AU from the Sun. After passage through the Termination Shock, the spacecraft will be operating in the Heliosheath environment which is still dominated by the Sun's Magnetic Field and particles contained in the Solar Wind. The HEP ends with passage through the Heliopause which is the outer extent of the Sun's Magnetic Field and Solar Wind. The thickness of the Heliosheath is uncertain and could be tens of AU thick taking several years to traverse. Passage through the Heliopause begins the Interstellar Exploration Phase (IEP) with the spacecraft operating in an interstellar wind dominated environment. This interstellar exploration is the ultimate goal of the Voyager Interstellar Mission.MareKromium
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TitanianLake_Fog-VSS00100.jpgTitanian Lake and Fog (by Calvin Hamilton)63 visitenessun commentoMareKromium
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SolarHalo-3-MF.jpgSolar Halo (credits: Dr Marco Faccin)63 visitenessun commentoMareKromium
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The_Moon_and_Venus.jpgCrescent Moon and Venus63 visiteCaption NASA, da "NASA - Picture of the Day" del giorno 6 Marzo 2009:"Last Friday (such as February, 27th, 2009), the Moon and Venus shared the early evening sky in a beautiful Conjunction.
Separated by only about 2°, they also were both in a crescent phase.
Just like our Moon, Venus can appear as a full disk or a thin crescent. Frequently the brightest object in the post-sunset or pre-sunrise sky, Venus is so small that it usually requires binoculars or a small telescope to clearly see its phase.
This telescopic image of Friday's Conjunction shows off the similar crescent phases, with the tiny crescent Venus at the upper right".MareKromium
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Moons_of_the_Solar_System.jpgWhich is Which?63 visiteMiranda, Proteus, Enceladus e Mimas: queste quattro "Lune del Sistema Solare" sono state allineate in questa fotocomposizione in maniera tale da poterne individuare le affinità e le differenze con un solo sguardo.
MA...affinità e differenze a parte, sapreste ordinarle correttamente, da Sx a Dx, attribuendo ad ognuna di esse il giusto nome? Provateci!MareKromium
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