"Wrapped around your finger"
segunda-feira, 31 de outubro de 2016
Image Credit & Copyright: Yuichi Takasaka
Explanation: What does this aurora look like to you? While braving the cold to watch the skies above northern Canada early one morning in 2013, a most unusual aurora appeared. The aurora definitely appeared to be shaped likesomething , but what? Two ghostly possibilities recorded by the astrophotographer were "witch" and "goddess of dawn", but please feel free to suggest your own Halloween-enhanced impressions. Regardless of fantastical pareidolicinterpretations, the pictured aurora had a typical green color and was surely caused by the scientifically commonplace action of high energy particles from space interacting with oxygen in Earth's upper atmosphere. In the image foreground, at the bottom, is a frozen Alexandra Falls, while evergreen trees cross the middle.
domingo, 30 de outubro de 2016
Image Credit: Mohammad Heydari-Malayeri (Observatoire de Paris) et al., ESA, NASA
Explanation: Halloween's origin is ancient and astronomical. Since the fifth century BC, Halloween has been celebrated as a cross-quarter day, a day halfway between an equinox (equal day / equal night) and a solstice (minimum day / maximum night in the northern hemisphere). With a modern calendar however, even though Halloween occurs tomorrow, the real cross-quarter day will occur next week. Another cross-quarter day is Groundhog Day. Halloween's modern celebration retains historic roots in dressing to scare away the spirits of the dead. Perhaps a fitting tribute to this ancient holiday is this view of the Ghost Head Nebula taken with the Hubble Space Telescope. Similar to the icon of a fictional ghost, NGC 2080 is actually a star forming region in the Large Magellanic Cloud, a satellite galaxy of our own Milky Way Galaxy. The Ghost Head Nebula spans about 50 light-years and is shown in representative colors.
sábado, 29 de outubro de 2016
Image Credit & Copyright: Chris Kotsiopoulos (GreekSky)
Explanation: October's Hunters Moon shines near the horizon, setting beyond the arches of Whitby Abbey in this eerie night scene. The moonlight partly illuminates the ruined Benedictine abbey's grounds and walls on a cliff overlooking the North Sea from England's Yorkshire coast. Fans of Bram Stoker's 1897 novel Dracula will recognize the abbey and town of Whitby as the location of the Transylvanian count's shipwrecked landing on English shores. There fiction's most famous vampire transformed into an immense dog, jumped ashore and ran up the cliff to the ruined abbey. A 360 degree panorama, the dramatic fisheye view was created from 23 digitally stitched photos.
sexta-feira, 28 de outubro de 2016
Votre maison est baignée par le soleil ou vous disposez d’une vue imprenable sur la mer ? Tremblez. A l’avenir, vous pourriez bien payer une taxe foncière en hausse de 10 à 20 %, rapporte The Portugal News.
Le gouvernement portugais a en effet annoncé qu’il envisageait de mettre en place, au niveau municipal, un impôt foncier proportionnel à l’intensité de la lumière naturelle et à la vue dont votre logement bénéficie. À l’inverse, le propriétaire d’un appartement situé en rez-de-chaussée ou particulièrement exposé au bruit aura de bonnes chances de voir le montant de sa taxe foncière diminuer. Fernando Rocha Andrade, secrétaire d’état aux Affaires fiscales, justifie cette mesure par la volonté du gouvernement d’introduire une plus grande équité fiscale entre les contribuables. De son côté, Luis Menezes Leitao, président de l’association des propriétaires de Lisbonne, condamne un projet “qui ne rime à rien. Les propriétaires vont devoir payer un impôt sur quelque chose qui ne génère pas de revenu. Certains n’auront pas les moyens de payer.”Toutefois, cette taxe n’est pas une mauvaise nouvelle pour tout le monde. En effet, elle ne devrait pas s’appliquer à tous les propriétaires mais uniquement à ceux qui ont acheté ou fait estimer leur logement récemment. Le budget sera voté en novembre prochain. On saura alors si cette mesure rentrera en vigueur.
Courrier International - France
Uma réplica de onze metros de altura do Cristo Redentor do Corcovado a ser transportada por um helicóptero num monte da localidade de Pfaefers (Suiza) por motivo de uma celebração de arte na região.
GIAN EHRENZELLER EFE
El relojero Istvan Hanga ajusta la hora de un reloj enorme en la catedral de Kecskemét en la Casa Bozso de Colecciones de Relojes en Kecskemét (Hungría).
SANDOR UJVARI EFE
"Vizinha tem ca lume"
Image Credit & Copyright: Thomas Lelu
Explanation: Spooky shapes seem to haunt this jeweled expanse, drifting through the night in the royal constellation Cepheus. Of course, the shapes are cosmic dust clouds faintly visible in dimly reflected starlight. Far from your own neighborhood on planet Earth, they lurk along the plane of the Milky Way at the edge of the Cepheus Flare molecular cloud complex some 1,200 light-years away. Over 2 light-years across and brighter than the other ghostly apparitions, vdB 141 or Sh2-136 is also known as the Ghost Nebula, seen at the right of the starry field of view. Within the nebula are the telltale signs of dense cores collapsing in the early stages of star formation.
quinta-feira, 27 de outubro de 2016
Visitantes de la exposición 'Van Gogh Alive - The Experience', explora el trabajo de Vincent Van Gogh de 1880 a 1890 en Roma (Italia).
ALBERTO PIZZOLI AFP
Image Credit & Copyright: Rolf Geissinger
Explanation: 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 cosmic scene toward the royal constellation Cepheus. Composed with almost 17 hours of narrowband image data, the telescopic field of view is 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 HR8119, a triple system of hot, massive stars seen near the center of the nebula. The truly giant Squid Nebula would physically be nearly 50 light-years across.
quarta-feira, 26 de outubro de 2016
Image Credit: NASA, JPL-Caltech, Space Science Institute
Explanation: What created these unusually long shadows on Saturn's rings? The dark shadows -- visible near the middle of the image -- extend opposite the Sun and, given their length, stem from objects having heights up to a few kilometers. The long shadows were unexpected given that the usual thickness of Saturn's A and B rings is only about 10 meters. After considering the choppy but elongated shapes apparent near the B-ring edge, however, a leading theory has emerged that some kilometer-sized moonlets exist there that have enough gravity to create even larger vertical deflections of nearby small ring particles. The resulting ring waves are called propellers, named for how they appear individually. It is these coherent groups of smaller ring particles that are hypothesized to be casting the long shadows. The featured image was taken by the robotic Cassini spacecraft currently orbiting Saturn. The image was captured in 2009, near Saturn's equinox, when sunlight streamed directly over the ring plane and caused the longest shadows to be cast.
terça-feira, 25 de outubro de 2016
Image Credit: NASA, JPL-Caltech, SwRI, MSSS; Processing & CC-BY: Alex Mai
Explanation: What's happening near the south pole of Jupiter? Recent images sent back by NASA's robotic Juno spacecraft are showing an interesting conglomeration of swirling clouds and what appear to be white ovals. Juno arrived at Jupiter in July and is being placed into a wide, looping orbit that will bring it near the gas giant -- and over its poles -- about twice a month. The featured image is a composite taken by JunoCam and post-processed by a digitally savvy citizen scientist. White ovals have been observed elsewhere on Jupiter and are thought to be giant storm systems. They have been observed to last for years, while typically showing Category 5 wind speeds of around 350 kilometers per hour. Unlike Earthly cyclones and hurricanes where high winds circle regions of low pressure, white ovals on Jupiter show rotational directions indicating that they are anticylones -- vortices centered on high pressure regions. Juno will continue to orbit Jupiter over thirty more times while recording optical, spectral, and gravitational data meant to help determine Jupiter's structure and evolution.
Etiquetas: Astronomy picture of the day - 2016 October 25 - Clouds Near Jupiter's South Pole from Juno
Vejo pas e picaretas nos buracos da avenida; vejo a rua d’algumas pretas cada vez mais encardida. Vejo o Povo triste a chorar porque o Benfica perdeu… (acontece); vejo também putas a trabalhar no lindo dia que Deus deu!
Burgueses levam algumas de abraço, pensando ter negociata feito; parolos, cretinos, avessos; dali não levam nada e, elas rindo, desdobram-se, sem convicção, em inúteis e habituais manobras; esconder? Para quê! Elas são putas, e depois? A sinceridade nunca podera estar do lado dos palermas que se colocam ao seu lado.
O sol ja vai bem alto quando uma das Senhoras decide, com o obediente caniche à beira.
"E se tomassemos um refresco para desanuviar a poeira”?
Boa, o aplauso é geral!
Oh Fonseca vai la buscar o champanhe!
Bebem, ao fim da tarde, como se habituadas estivessem; a tão refinado "pirolito" cheio de bolinhas frescas…
Então não é tão bom!
segunda-feira, 24 de outubro de 2016
Image Credit: Benjamin Winkel & the HI4PI Collaboration
Explanation: Where are the Milky Way's gas clouds and where are they going? To help answer this question, a new highest-resolution map of the sky in the universe's most abundant gas -- hydrogen -- has been completed andrecently released, along with its underlying data. Featured above, the all-sky map of hydrogen's 21-cm emission shows abundance with brightness and speed with color. Low radial speeds toward us artificially colored blue and low radial speeds away colored green. The band across the middle is the plane of our Milky Way Galaxy, while the bright spots on the lower right are the neighboring Magellanic Clouds. The HI4PI map collects data from over one million observations with the northern Eiffelsberg 100-Meter Radio Telescope in Germany and the southern Parkes 64-Meter Radio Telescope in Australia, also known as "The Dish". The details of the map not only better inform humanity about star formation and interstellar gas in our Milky Way galaxy, but also how much light this local gas is likely to absorb when observing the outside universe. Many details on the map are not yet well understood.
domingo, 23 de outubro de 2016
Image Credit & Copyright: Bjørn Jørgensen
Explanation: What's that in the sky? An aurora. A large coronal mass ejection occurred on our Sun five days before this 2012 image was taken, throwing a cloud of fast moving electrons, protons, and ions toward the Earth. Although most of this cloud passed above the Earth, some of it impacted our Earth's magnetosphere and resulted in spectacular auroras being seen at high northern latitudes. Featured here is a particularly photogenic auroral corona captured above Grotfjord, Norway. To some, this shimmering green glow of recombining atmospheric oxygen might appear as a large eagle, but feel free to share what it looks like to you. Although now past Solar Maximum, our Sun continues to show occasional activity creating impressive auroras on Earth visible only last week.
sábado, 22 de outubro de 2016
Localizado no bairro de Laranjeiras, a dois quarteirões do Palácio Guanabara, esse palácio foi construído em 1913 para ser residência da Família Guinle.
Em 1947 o Presidente Dutra adquiriu o palacete para destiná-lo a hospedagem de visitantes ilustres e chefes de estado em visita ao Brasil, entre 1956 e 1961 foi a residência oficial da presidência, no governo Juscelino Kubitschek.
Hoje em dia é a residência oficial do governador do estado do Rio de Janeiro.
Image Credit & Copyright: Babak Tafreshi (TWAN), AURA
Explanation: Early one moonlit evening car lights left a wandering trail along the road to the Chilean Cerro Tololo Inter-American Observatory. Setting stars left the wandering trails in the sky. The serene view toward the mountainous horizon was captured in a telephoto timelapse image and video taken from nearby Cerro Pachon, home to Gemini South. Afforded by the mountaintop vantage point, the clear, long sight-line passes through layers of atmosphere. The changing atmospheric refraction shifts and distorts the otherwise steady apparent paths of the stars as they set. That effect also causes the distorted appearance of Sun and Moon as they rise or set near a distant horizon.
sexta-feira, 21 de outubro de 2016
Image Credit & Copyright: Greg Chavdarian
Explanation: On October 15, standing near the summit of Hawaii's Mauna Kea and looking away from a gorgeous sunset produced this magnificent snapshot of a Full Moon rising within the volcanic mountain's shadow. An alignment across the Solar System is captured in the stunning scene and seeming contradiction of bright Moon in dark shadow. The triangular appearance of a shadow cast by a mountain's irregular profile is normal. It's created by the perspective of the distant mountaintop view through the dense atmosphere. Rising as the Sun sets, the antisolar point or the point opposite the Sun is close to the perspective's vanishing point near the mountain shadow's peak. But extending in the antisolar direction, Earth's conical shadow is only a few lunar diameter's wide at the distance of the Moon. So October's Full Hunters Moon is still reflecting sunlight, seen through the mountain's atmospheric shadow but found too far from the antisolar point and the Earth's extended shadow to be eclipsed.
quinta-feira, 20 de outubro de 2016
Almost every tourist that walks through Alfama passes right by this church, but ends up not knowing that they’re standing by one of the most remarkable works of architecture in the city. Behind a simple façade is a space almost entirely covered with gold leaf, but it can only be admired during Mass on Friday afternoon or early Sunday morning.
Praticamente todos os turistas que passeiam por Alfama passam por esta igreja, mas acabam por não se aperceber que se encontram junto de uma das mais notáveis obras artísticas da cidade. Uma simples fachada esconde um interior quase todo coberto de talha dourada, que apenas pode ser admirado durante a missa às sextas-feiras à tarde ou ao domingo de manhã.
O surfista português Miguel Blanco em competição na praia de Supertubos em Peniche (Portugal). - Rip Curl Pro Portugal -.
CARLOS BARROSO EFE
La nave espacial Soyuz MS-02 con Shane Kimbrough (EE.UU), Sergey Ryzhikov (Rusia) y Andrey Borisenko (Rusia) a bordo, despega hacia la Estación Espacial Internacional (ISS) desde la plataforma de lanzamiento en el cosmódromo de Baikonur (Kazajistán).
SHAMIL ZHUMATOV REUTERS
Image Credit & Copyright: Martin Pugh
Explanation: Framing a bright emission region this telescopic view looks out along the plane of our Milky Way Galaxy toward the nebula rich constellation Cygnus the Swan. Popularly called the Tulip Nebula, the glowing cloud of interstellar gas and dust is also found in the 1959 catalog by astronomer Stewart Sharpless as Sh2-101. About 8,000 light-years distant and 70 light-years across the complex and beautiful nebula blossoms at the center of the composite image. Red, green, and blue hues map emission from ionized sulfur, hydrogen, and oxygen atoms. Ultraviolet radiation from young, energetic stars at the edge of the Cygnus OB3 association, including O star HDE 227018,ionizes the atoms and powers the visible light emission from the Tulip Nebula. HDE 227018 is the bright star very near the blue arc at the center of the cosmic tulip.
quarta-feira, 19 de outubro de 2016
António Guterres a été officiellement élu secrétaire général de l’ONU jeudi 6 octobre, succédant ainsi au Sud-Coréen Ban Ki-moon. Beaucoup de journaux portugais ne cachent pas leur joie. “On a tous gagné”, exulte en une le journal Público. Dans un dossier consacré au membre du Parti socialiste et Premier ministre du pays de 1995 à 2002, le quotidien rappelle la défaite de la Bulgare Kristalina Georgevia, candidate de dernière heure et favorite de la chancelière Angela Merkel, avec un titre en forme de jeu de mots : “Une victoire cristalline”.
Pour le Diário de Notícias, cette défaite “est celle de Merkel”. Dans le même temps, le journal relaie les propos du ministre des Affaires étrangères, le très diplomate Augusto Santos Silva, affirmant que le processus de l’élection fut “exemplaire”.
Mais qui est António Manuel de Oliveira Guterres ? Selon le Diário de Notícias, c’est “un missionnaire qui est devenu un missionnaire politique”, décrivant ainsi le parcours du socialiste catholique ancien haut-commissaire aux réfugiés. Un homme “de conviction, très intelligent, courageux et fin stratège”, explique le journal.
L’hebdomadaire Visão met en avant les deux mots forts du discours de Lisbonne du jeudi 6 octobre, dans lequel le “missionnaire” parle de“gratitude et d’humilité face aux défis qui l’attendent”.
À noter, un bémol de la part de l’éditorialiste de Público, João Miguel Tavares, qui assène : “Si bon à l’étranger, si mauvais chez nous.”Jugeant mauvaise la prestation de Guterres lors de son mandat à São Bento, siège du gouvernement de Lisbonne, le comparant à celles de José Manuel Barroso, l’ancien président de la Commission européenne et aussi Premier ministre de 2002 à 2004, il écrit :
Alors que mon côté patriotique éprouve de la joie pour António Guterres, et lui souhaite beaucoup de chance, mon côté réaliste ne peut pas s’empêcher de ressentir une grande tristesse de voir la disparité entre le fait que ces deux hommes ont atteint le sommet au niveau international, alors qu’en tant que Premiers ministres du Portugal, ils ont été très limités. Barroso et Guterres ne sont pas différents du plombier portugais au Luxembourg ou de la concierge portugaise à Paris : leurs qualités reconnues à l’étranger n’ont jamais été révélées chez nous.”
Courrier International - France
Image Credit & Copyright: Hermann von Eiff
Explanation: Have you ever seen the Pleiades star cluster? Even if you have, you probably have never seen it as dusty as this. Perhaps the most famous star cluster on the sky, the bright stars of the Pleiades can be seen without binoculars even from the heart of a light-polluted city. With a long exposure from a dark location, though, the dust cloud surrounding the Pleiades star cluster becomes very evident. The featured image was a long duration exposure taken last month from Namibia and covers a sky area many times the size of the full moon. Also known as the Seven Sisters and M45, the Pleiades lies about 400 light years away toward the constellation of the Bull (Taurus). Acommon legend with a modern twist is that one of the brighter stars faded since the cluster was named, leaving only six stars visible to the unaided eye. The actual number of visible Pleiades stars, however, may be more or less than seven, depending on the darkness of the surrounding sky and the clarity of the observer's eyesight.
terça-feira, 18 de outubro de 2016
Image Credit & Copyright: Joy Pollard (Gemini Observatory)
Explanation: It does look like a flying saucer, but this technologically advanced structure is not here to deliver the wise extraterrestrial from the scifi classic movie The Day the Earth Stood Still. It is here to advance our knowledge of the Universe though. Shown sitting near the top of a mountain in Hawaii, the dome of the Gemini Observatory North houses one of two identical 8.1-meter diameter telescopes. Used with its southern hemisphere twin observatory in Chile, the two can access the entire sky from planet Earth. Constructed from 85 exposures lasting 30 seconds each with camera fixed to a tripod, the image also clearly demonstrates that the Earth did not stand still. Adjusted to be brighter at the ends of their arcs, the concentric star trails centered on the North Celestial Pole are a reflection of Earth's rotation around its axis. Close to the horizon at Hawaiian latitdues, Polaris, the North Star, makes the shortest star trail. The fainter denser forest of star trails toward the right is part of the rising Milky Way.
segunda-feira, 17 de outubro de 2016
"Retrato de Madame Claude Monet" (c. 1872-74), Fundação Calouste Gulbenkian
Etiquetas: Grandes Pintores Impressionistas - Pierre-Auguste Renoir - "Retrato de Madame Claude Monet"
Video Credit & Copyright: United Launch Alliance, NASA
Explanation: Have you ever seen a rocket launched into the Solar System? Last month a large Atlas V rocket blasted off from Launch Complex 41 in Florida carrying the ORISIX-REx spacecraft. This robotic spacecraft will attempt to land on Asteroid Bennu and return some of its soil to Earth. Asteroid 101955 Bennu orbits the Sun near the Earth, spans about 500-meters, is dark because its surface is covered with carbon, and has about a 1 in 2500 chance ofstriking the Earth in the next few thousand years. The exciting 2.5-minute video shows the Atlas V rocket being rolled out, prepared, and launched -- complete with a clip of side-boosters separating. If things go according to plan,ORISIS-REx will reach Bennu in 2018 and return samples to Earth in 2023. One science goal of OSIRIS-REx is to better determine whether ancient collisions between Earth and carbonaceous asteroids like Bennu provided Earth with a significant amount of the water and organic molecules necessary for the development of life.
domingo, 16 de outubro de 2016
A noble residence, built in 1740 on Rua da Junqueira in the Belém district, is now occupied by Lusíada University. It maintains a small chapel from 1740, with beautiful tile panels depicting Christ's crucifixion, and four stucco medallions on the ceiling with the images of the four Evangelists. In order to see these works of art that very few get to see, join the Thursday Mass at 1:10PM.
Uma casa nobre na Rua da Junqueira em Belém, construída em 1740, é hoje ocupada pela Universidade Lusíada. Mantém uma pequena capela, de 1740, com belíssimos painéis de azulejos ilustrando a crucificação de Cristo, e quatro medalhões no teto com as figuras em estuque dos quatro Evangelistas. Para poder admirar estas obras que muito poucos conhecem, assista à missa às quintas-feiras, às 13H10.
Image Credit: Magellan Spacecraft Team, USGS, NASA
Explanation: What could cause a huge cylindrical mountain to rise from the surface of Venus? Such features that occur on Venus are known as coronas. Pictured here in the foreground is 500-kilometer wide Atete Corona found in a region of Venus known as the Galindo. The featured image was created by combining multiple radar maps of the region to form a computer-generated three-dimensional perspective. The series of dark rectangles that cross the image from top to bottom were created by the imaging procedure and are not real. The origin of massive coronas remains a topic of research although speculation holds they result from volcanism. Studying Venusian coronas help scientists better understand the inner structure of both Venus and Earth.
sábado, 15 de outubro de 2016
"Eu não sei que tenho em Evora"
Image Credit & Copyright: ESA/Herschel/PACS/SPIRE
Explanation: This dramatic image peers within M42, the Orion Nebula, the closest large star-forming region. Using data at infrared wavelengths from the Herschel Space Observatory, the false-color composite explores the natal cosmic cloud a mere 1,500 light-years distant. Cold, dense filaments of dust that would otherwise be dark at visible wavelengths are shown in reddish hues. Light-years long, the filaments weave together bright spots that correspond to regions of collapsing protostars. The brightest bluish area near the top of the frame is warmer dust heated by the hot Trapezium cluster stars that also power the nebula's visible glow. Herschel data has recently indicated ultraviolet starlight from the hot newborn stars likely contributes to the creation of carbon-hydrogen molecules, basic building blocks of life. This Herschel image spans about 3 degrees on the sky. That's about 80 light-years at the distance of the Orion Nebula.
sexta-feira, 14 de outubro de 2016
Image Credit & Copyright: Stéphane Guisard (Los Cielos de America, TWAN)
Explanation: The central bulge of our Milky Way Galaxy rises over the northern Chilean Atacama altiplano in this postcard from planet Earth. At an altitude of 4500 meters, the strange beauty of the desolate landscape could almost belong to another world though. Brownish red and yellow tinted sulfuric patches lie along the whitish salt flat beaches of the Salar de Aguas Calientes region. In the distance along the Argentina border is the stratovolcano Lastarria, its peak at 5700 meters (19,000 feet). In the clear, dark sky above, stars, nebulae, and cosmic dust clouds in the Milky Way echo the colors of the altiplano at night. Extending the view across extragalactic space, the Large and SmallMagellanic Clouds, satellite galaxies of the Milky Way, shine near the horizon through a faint greenish airglow.
quarta-feira, 12 de outubro de 2016
"Serpas de Guadalupe"