| Piú viste - The Universe Inside |
Sunrise.jpgCrepuscular Rays Over Utah88 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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Sun Pillars.jpgLight Pillars' Parade88 visiteDa "NASA - Picture of the Day" del 5 Marzo 2006:"How can an aurora appear so near the ground? Pictured above are not aurora but nearby light pillars, a local phenomenon that can appear as a distant one. In most places on Earth, a lucky viewer can see a Sun-pillar, a column of light appearing to extend up from the Sun caused by flat fluttering ice-crystals reflecting sunlight from the upper atmosphere. Usually these ice ice crystals evaporate before reaching the ground. During freezing temperatures, however, flat fluttering ice crystals may form near the ground in a form of light snow, sometimes known as a crystal fog. These ice crystals may then reflect ground lights in columns not unlike a Sun-pillar. In the above picture, the colorful lights causing the light pillars surround a ice-skating ring in Fairbanks, Alaska".
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SettingSun.jpgA Day of the Sun88 visite"...Peace I leave with you; my Peace I give to you..."
- John 14:27
nota: "A Day of the Sun" anche il titolo di una serie di opere dedicate al Sole, realizzate dal Pittore Tetsuro Sawada.
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Up_above_Jupiter.jpgOver the clouds of Jupiter...88 visiteMareKromium
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The_Sun~0.jpgNorouz...88 visiteCaption NASA:"Clouds covered the eastern horizon on Monday, when the Sun rose over the expansive Touran Wildlife Reserve in North-Eastern Iran. Of course, on that day the Moon rose with the Sun, creating a widely enjoyed partial solar eclipse. Along with a mountainous horizon, the cloud cover lent a dramatic aspect to this eclipse sunrise and made it possible for astronomer Babak Tafreshi to record these telephoto images without using a filter. Advancing north in planet Earth's sky, the Sun itself was also approaching the equinox, the astronomical marker for the first day of Northern Hemisphere Spring and the beginning of Norouz, the Persian New Year".
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The_Moon_and_Venus.jpgCrescent Moon and Venus88 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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LongAgo.gifAccording to Lagrange...88 visitenessun commentoMareKromium
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StarBirth-PIA12008.jpgStar-Birth88 visitenessun commentoMareKromium
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Venus~0.jpgNight-flight to Venus (by Roberto Tremolada)88 visitenessun commentoMareKromium
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Earth.pngMother Earth88 visiteDalla Rubrica "NASA - Picture of the Day", del giorno 23 Novembre 2009:"Goodbye Earth!
Earlier this month, ESA's interplanetary Rosetta Spacecraft zoomed past the Earth on its way back across the Solar System.
Pictured above, Earth showed a bright crescent phase featuring the South Pole to the passing rocket ship. Launched from Earth in 2004, Rosetta used the gravity of the Earth to help propel it out past Mars and toward a 2014 rendezvous with Comet Churyumov-Gerasimenko.
Last year, the Robot Spacecraft passed asteroid 2867 Steins, and next year it is scheduled to pass enigmatic asteroid 21 Lutetia. If all goes well, Rosetta will release a probe that will land on the 15-Km diameter comet in 2014". MareKromium
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The_Sun_over_Stonehenge.jpgSunrise Solstice at Stonehenge 88 visitenessun commentoMareKromium
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Never Alone.jpgNever Alone...87 visitenessun commento
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