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V-838_Mon-01.jpgV-838 Monocerotis58 visite"...Optimus est orator qui dicendo animos audientium et docet, et delectat et permovet..."
(Cicerone)
"...Eccellente è quell'oratore che, parlando, insegna, diletta e commuove gli animi di coloro che ascoltano..."
(12 voti)
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Black Hole-PIA08696.jpgBlack Hole60 visiteThis artist's concept depicts a supermassive black hole at the center of a galaxy. NASA's Galaxy Evolution Explorer found evidence that black holes -- once they grow to a critical size -- stifle the formation of new stars in elliptical galaxies. Black holes are thought to do this by heating up and blasting away the gas that fuels star formation.
The blue color here represents radiation pouring out from material very close to the black hole. The grayish structure surrounding the black hole, called a torus, is made up of gas and dust. Beyond the torus, only the old red-colored stars that make up the galaxy can be seen. There are no new stars in the galaxy.
(12 voti)
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APOLLO 12 AS 12-50-7369.jpgAS 12-50-7369 - Icy Streaks on the "Hatch Window"85 visiteCaption NASA originale:"According to National Space Science Data Center document NSSDC-70-11 (July 1970), this photo shows the 'Fouled Hatch Window; streaks go (left) away from the CMS cone (right)'.
This photo was taken inside the Command Space Module (CSM) during the Translunar Coast".
Nota: un commento asciutto ed un dettaglio intrigante ma...che cosa si vede - realmente - fuori dall'oblo'?!?
(12 voti)
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Mars Full Panorama.jpgSummer afternoon on Mars63 visite
(12 voti)
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Tombaugh 4.jpgTombaugh-471 visite"...Where is the Way to the dwelling of Light...That you may discern the paths to its Home?..."
John 38:19-20
(12 voti)
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Rho Ophiuci.jpgRho Ophiuci60 visite"...May I return, to the beginning,
The light was dimming, and the Dream was too,
The World and I, we are still waiting,
Still hesitating,
Any Dream will do..."
Dal Musical "Joseph and the Amazing Technicolor Dreamcoat"
(12 voti)
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Upsilon Andromedae-PIA01938.jpgUpsilon Andromedae60 visite"...Quod ratio non quit, saepe sanavit mora..."
(Seneca)
"...Ciò che la Ragione non comprese, spesso venne chiarito dal Tempo..."
(12 voti)
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The_Markarian_Chain.jpgThe "Markarian Chain"60 visite"...Quod sis esse velis, nihilque malis..."
(Marziale)
"...Devi essere quello che sei, e nulla di più..."
(12 voti)
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082-OPP-SOL949-1N212432125EDN76ACP1585L0M1-1.jpgMartian "Blue Skies" (3) - Sol 94994 visitenessun commento
(12 voti)
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NGC-5395.jpgNGC 5395 - Interacting Galaxies61 visite"...Dat veniam corvis, vexat censura columbae..."
(Giovenale)
"...I censori scusano i corvi, ma straziano le colombe..."
(detto riferito a coloro che, da un lato, blandiscono i potenti, qualsiasi cosa essi facciano, e dall'altro compiono angherie in danno dei deboli)
(12 voti)
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Vortex.jpgInside the Vortex...64 visiteFix your camera to a tripod, lock the shutter open, and you can make an image of star trails - graceful concentric arcs traced by the stars as planet Earth rotates on its axis. Of course, the length of the star trails will depend on the exposure time. While exposures lasting just five minutes produce a significant arc, in about 12 hours a given star would trace out half a circle. But in any long exposure, the background glow from light-polluted skies can build up to wash out the trails. Still, astronomer Josch Hambsch produced this stunning composite of star trails around the South Celestial Pole with an effective "all night" exposure time of almost 11 hours. To do it, he combined 128 consecutive five minute long digital exposures recorded in very dark night skies above Namibia. In his final image, the background glow on the right is due in part to the faint, arcing Milky Way.
(12 voti)
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Lunar Eclipse.jpgLunar Eclipse over England67 visiteDa "NASA - Picture of the Day", dell'11 Settembre 2006:"Last Thursday - Sept., 7th, 2006 -, part of our Moon turned dark. The cause, this time, was not a partial lunar phase - the Moon was full - but rather that part of the Moon went into Earth's shadow. The resulting Partial Lunar Eclipse was visible from the Eastern Atlantic Ocean through Europe, Africa and Asia and into the Western Pacific Ocean. The darkest part of the Lunar Eclipse, when part of the Moon was completely shielded from Sunlight, lasted about 90 minutes.
Pictured here, a partially eclipsed Moon is seen rising over an estate in Huddersfield, England. The above image was taken far away from the house in the foreground, as only this would allow it to appear as angularly small as the half-degree Moon far in the background. A setting twilight Sun lit the foreground. The next eclipse of the Moon will occur in March 2007".
(12 voti)
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