Cassini’s Retirement

La arquitectura fundida con el arte se convierte en una obra de enseñanza histórica. En ellas podemos leer los sucesos de los grandes éxitos militares de la época.

Reliefs on the column of Marcus Aurelius  | 2nd Century AD

Un maravilloso encuentro!!!

Will either of these galaxies survive? In what might be dubbed as a semi-final round in a galactic elimination tournament, the two spirals of NGC 7318 are colliding. The featured picture was created from images taken by the Hubble Space Telescope. When galaxies crash into each other, many things may happen including gravitational distortion, gas condensing to produce new episodes of star formation, and ultimately the two galaxies combining into one. Since these two galaxies are part of Stephan’s Quintet, a final round of battling galaxies will likely occur over the next few billion years with the eventual result of many scattered stars and one large galaxy. Quite possibly, the remaining galaxy will not be easily identified with any of its initial galactic components. Stephan’s Quintet was the first identified galaxy group, lies about 300 million light years away, and is visible through a moderately-sized telescope toward the constellation of the Winged Horse (Pegasus).

Object Names: NGC 7318, Stephan’s Quintet

Image Type: Astronomical

Credit: Hubble Legacy Archive, NASA, ESA (Via Nasa’s APOD)

Pocesing And Copyright: José Jimenez Priego

Time And Space

TODAY IN HISTORY: The rings of Saturn, August 17, 1981, in an enhanced view from the Voyager 2 space probe, assembled from clear, orange and ultraviolet frames taken at a distance of 8.9 million km (5.5 million miles). (NASA)

Alejandro, grande entre los grandes

HELLENISTIC WARFARE: 

WHEN Alexander the Great died in 323 BCE, he left behind an empire devoid of leadership. Without a named successor or heir, the old commanders simply divided the kingdom among themselves. For the next three decades, they fought a lengthy series of wars - the Wars of the Diadochi or Wars of the Successors - in a futile attempt to restore the tattered kingdom.

Although the Hellenistic Age saw Greek language, art and philosophy flourish throughout Asia, there were few advances in military tactics. Instead, it was a time of “kingdoms and their armies.” The successors inherited an army borne out of the reforms of Philip II of Macedon. He was an innovator; the first Greek to master siege warfare, and with his son Alexander, they made Macedon the foremost power in both Greece and Asia. Together, Alexander and his father would create an army unlike anything the ancient world had ever seen.

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Article by Donald L. Wasson || Photos by Mark Cartwright, Carole Raddato and Caroline Cervera on AHE

Pot of red clay containing a hoard of 1,925 Roman silver coins, buried c. 230 AD.  Part of the Falkirk Hoard found in August 1933 in Bell’s Meadow, Falkirk, Scotland (National Museums Scotland).

 What’s that in front of the Moon? It’s the International Space Station. Using precise timing, the Earth-orbiting space platform was photographed in front of a partially lit Moon last year. The featured image was taken from Madrid, Spain with an exposure time of only 1/1000 of a second. In contrast, the duration of the transit of the ISS across the entire Moon was about half a second. The sun-glinting station can be seen just to the dark side of the day / night line known as the terminator. Numerous circular craters are visible on the distant Moon, as well as comparatively rough, light colored terrain known as highlands, and relatively smooth, dark colored areas known as maria. On-line tools can tell you when the International Space Station will be visible from your area.

Object Names: Moon, ISS

Image Type: Astronomical

Credit: Dani Caxete

Time And Space>b

Nuestro Universo, simple y sencillamente FASCINANTE. Les recomiendo ampliamente este blog Thetimeandsoaceblog, publica unas fotos admirables.

Very faint but also very large on planet Earth’s sky, a giant Squid Nebula cataloged as Ou4, and Sh2-129 also known as the Flying Bat Nebula, are both caught in this scene toward the royal constellation Cepheus. Composed with a total of 20 hours of broadband and narrowband data, the telescopic field of view is almost 4 degrees or 8 Full Moons across. Discovered in 2011 by French astro-imager Nicolas Outters, the Squid Nebula’s alluring bipolar shape is distinguished here by the telltale blue-green emission from doubly ionized oxygen atoms. Though apparently completely surrounded by the reddish hydrogen emission region Sh2-129, the true distance and nature of the Squid Nebula have been difficult to determine. Still, a recent investigation suggests Ou4 really does lie within Sh2-129 some 2,300 light-years away. Consistent with that scenario, Ou4 would represent a spectacular outflow driven by a triple system of hot, massive stars, cataloged as HR8119, seen near the center of the nebula. If so, the truly giant Squid Nebula would physically be nearly 50 light-years across.

Object Names: Squid Nebula/Ou4, Flying Bat Nebula/Sh2-129

Image Type: Astronomical

Credit: Steve Canistra (Starry Wonders)

Time And Space

Algún día visitaré este hermoso país.

Warsaw, Poland

Un hermoso castillo en Molina, data del s. XVII con remodelaciones en el XIX y XX. Quien lo reconstruyó como el original, se quemó parcialmente en 1896, fué Hubert von Tiele-Winckler hijo.

Moszna Castle, Poland

Bello!!

Baltic Sea, Sopot, Poland