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The sun emitted a solar flare on Dec. 4, 2014, seen as the flash of light in this image from NASA's Solar Dynamics Observatory. The image blends two wavelengths of extreme ultraviolet light – 131 and 171 Angstroms – which are typically colored in teal and gold, respectively. Read more: 1.usa.gov/121n7PP
Image Credit: NASA/SDO
The sun emitted a significant solar flare, peaking at 5:40 p.m. EDT on Oct. 24, 2014. The flare erupted from a particularly large active region -- labeled AR 12192 -- on the sun that is the largest in 24 years. This is the fourth substantial flare from this active region since Oct. 19.
Read more: www.nasa.gov/content/goddard/giant-sunspot-erupts-with-4t...
On Aug. 24, 2014, the sun emitted a mid-level solar flare, peaking at 8:16 a.m. EDT. NASA's Solar Dynamics Observatory captured images of the flare, which erupted on the left side of the sun. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel.
This close-up of a moderate flare on Aug. 24, 2014, shows light in the 131 and 171 Angstrom wavelengths. The former wavelength, usually colorized in teal, highlights the extremely hot material of a flare. The latter, usually colorized in gold, highlights magnet loops in the sun's atmosphere.
To see how this event may affect Earth, please visit NOAA's Space Weather Prediction Center at spaceweather.gov, the U.S. government's official source for space weather forecasts, alerts, watches and warnings.
This flare is classified as an M5 flare. M-class flares are ten times less powerful than the most intense flares, called X-class flares.
Credit: NASA/Goddard/SDO
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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Phenomena across the Universe emit radiation spanning the entire electromagnetic spectrum — from high-energy gamma rays, which stream out from the most energetic events in the cosmos, to lower-energy microwaves and radio waves.
Microwaves, the very same radiation that can heat up your dinner, are produced by a multitude of astrophysical sources, including strong emitters known as masers (microwave lasers), even stronger emitters with the somewhat villainous name of megamasers and the centers of some galaxies. Especially intense and luminous galactic centers are known as active galactic nuclei. They are in turn thought to be driven by the presence of supermassive black holes, which drag surrounding material inwards and spit out bright jets and radiation as they do so.
The two galaxies shown here, imaged by the NASA/ESA Hubble Space Telescope, are named MCG+01-38-004 (the upper, red-tinted one) and MCG+01-38-005 (the lower, blue-tinted one). MCG+01-38-005 (also known as NGC 5765B) is a special kind of megamaser; the galaxy’s active galactic nucleus pumps out huge amounts of energy, which stimulates clouds of surrounding water. Water’s constituent atoms of hydrogen and oxygen are able to absorb some of this energy and re-emit it at specific wavelengths, one of which falls within the microwave regime, invisible to Hubble but detectable by microwave telescopes. MCG+01-38-005 is thus known as a water megamaser!
Image Credit: ESA/Hubble & NASA
For this image, the NASA/ESA Hubble Space Telescope turned its powerful eye toward an emission-line galaxy called NGC 3749.
When astronomers explore the contents and constituent parts of a galaxy somewhere in the universe, they use various techniques and tools. One of these is to spread out the incoming light from that galaxy into a spectrum and explore its properties. This is done in much the same way as a glass prism spreads white light into its constituent wavelengths to create a rainbow. By hunting for specific signs of emission from various elements within a galaxy’s spectrum of light —so-called emission lines — or, conversely, the signs of absorption from other elements — so-called absorption lines — astronomers can start to deduce what might be happening within.
If a galaxy’s spectrum shows many absorption lines and few emission lines, this suggests that its star-forming material has been depleted and that its stars are mainly old, while the opposite suggests it might be bursting with star formation and energetic stellar newborns. This technique, known as spectroscopy, can tell us about a galaxy’s type and composition, the density and temperature of any emitting gas, the star formation rate, or how massive the galaxy’s central black hole might be.
While not all galaxies display strong emission lines, NGC 3749 does. It lies over 135 million light-years away and is moderately luminous. The galaxy has been used as a “control” in studies of especially active and luminous galaxies — those with centers known as active galactic nuclei, which emit copious amounts of intense radiation. In comparison to these active cousins, NGC 3749 is classified as inactive, and has no known signs of nuclear activity.
Image credit: ESA/Hubble & NASA, D. Rosario et al.
More about Chandra's 20th Anniversary
The sun emitted a trio of mid-level solar flares on April 2-3, 2017. The first peaked at 4:02 a.m. EDT on April 2, the second peaked at 4:33 p.m. EDT on April 2, and the third peaked at 10:29 a.m. EDT on April 3. NASA’s Solar Dynamics Observatory, which watches the sun constantly, captured images of the three events. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however — when intense enough — they can disturb the atmosphere in the layer where GPS and communications signals travel.
Image Credit: NASA/SDO
At this time of year in the UK, it gets dark very very late in the evening. And when you're a wage slave like me, staying up till 3am is not a good idea with the ensuing hangover I get from lack of sleep! So when @ryuslightworks and his partner decided to take a holiday in the UK, who am I to refuse a lightpainting session in the dark?
To get around staying up so late in the evening, I suggested we collaborate in a local to me abandoned railway tunnel. I've visited and lightpainted in the tunnel quite a few times and knew it would be a safe bet to provide a dark location. And not to mention at a more socialable and work friendly hour!
One of the items of lightpainting gear Dennis had brought along was his Laser Cube. I've been eager to see one of these cool laser devices which emit all kinds of static and moving laser lights of all colours. You can see details for the Laser Cube here: www.laseros.com/lasercube/?wcmlc=GBP
This is a camera rotated image where the camera is rotated on it's lens axis and is created in one photographic exposure.
The sun emitted a mid-level solar flare, peaking at 11:24 p.m. EST on Jan. 12, 2015. NASA’s Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel.
This flare is classified as an M5.6-class flare. M-class flares are a tenth the size of the most intense flares, the X-class flares. The number provides more information about its strength. An M2 is twice as intense as an M1, an M3 is three times as intense, etc.
Credit: NASA/Goddard/SDO
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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An LED video light, taken using a star filter; the result given the NIK Collection Silver Efex Pro Bleach Bypass and Infrared Filter treatment in Photoshop.
. . . the very weak glow of a long-departed sun still managing to exert a delicate influence.
Shots like this are problematic for me: I could well understand why someone unfamiliar with the Scottish Highlands might fail to see any merit in this image; those of us who call Scotland's highest a long-standing friend, however, will hopefully recognise the remarkable & potent presence it emits here, in the gentle light of the 'gloaming'.
A very pointy Càrn Mòr Dearg (my highest ever bivouac some years ago) & an oddly small looking Stob Bàn add to the interest.
This is another shot of the Multiverse light sculpture by Leo Villareal. It is currently on display at the moving walkway at the National Gallery of Art in Washington, DC. The 40,000 light emitting diodes are constantly changing patterns as you move down the walkway between the East and West Gallery.
I am indebted to Wayne Withers for the identification of this primitive marine organism which is colonial, reproduces asexually and emits light to capture its prey. Any further contributions as to species welcome.
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Staatsqualle Сифонофор
Son solitarios.
Los machos son territoriales y emiten sus cantos desde los árboles altos del bosque, lo que ayuda a que estos se difundan a una mayor distancia. Los machos estiran sus carúnculas mientras cantan y las contraen cuando salen del territorio para alimentarse. Las notas más fuertes se pueden escuchar hasta 0.5 km. de distancia o más. Mientras el macho emite sus notas, abre el pico ampliamente y exhibe su boca negra como una caverna.
Los machos poseen un territorio al que protegen y donde pasan todo el día. Lo abandonan por poco tiempo para alimentarse. Estos territorios varían en tamaño y fluctúan en extensión desde 70 por 30 m. hasta 450 por 50 m.
Los machos estiran las carúnculas mientras cantan y las retraen cuando salen del territorio para alimentarse. Casi siempre se alimentan fuera de su territorio y cuando esto sucede, o cuando visita el territorio de otro macho, retrae las carúnculas, mientras que el macho dominante (dueño del territorio) las extiende; posteriormente este último acompaña al subordinado fuera de su territorio.
The mist this evening was unexpected but in the end welcome. I don't think I've ever seen the beams of light emitted from Flamborough Lighthouse as good as this before.
Thanks to Rob for providing the sense of scale!
Caption: A burst of solar material leaps off the left side of the sun in what’s known as a prominence eruption. This image combines three images from NASA’s Solar Dynamics Observatory captured on May 3, 2013, at 1:45 pm EDT, just as an M-class solar flare from the same region was subsiding. The images include light from the 131, 171 and 304 Angstrom wavelengths.
Credit: NASA/Goddard/SDO
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The sun emitted a mid-level solar flare, peaking at 1:32 pm EDT on May 3, 2013. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel. This disrupts the radio signals for as long as the flare is ongoing, and the radio blackout for this flare has already subsided.
This flare is classified as an M5.7 class flare. M-class flares are the weakest flares that can still cause some space weather effects near Earth. Increased numbers of flares are quite common at the moment, since the sun's normal 11-year activity cycle is ramping up toward solar maximum, which is expected in late 2013.
Updates will be provided as they are available on the flare and whether there was an associated coronal mass ejection (CME), another solar phenomenon that can send solar particles into space and affect electronic systems in satellites and on Earth.
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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Emitting their signature hi-pitch drone, Royal Canadian Air Force Lockheed Martin CC-130J 130617 Super Hercules aka 'CFC4221' trails southwards at FL290 on it's way from Keflavik for Sigonella
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El brillo es una luz que se emite o refleja un cuerpo. Lucimiento o ventaja de una persona sobre otras a causa de su talento o hermosura.
luz, brillo, hermosura, momentos, instantes
Still emitting some clag, this is the image I wanted to capture. The later departure of 10.01 from Mountsorrel surely meant there was little time to catch up time. This made it an attractive proposition at this location. Not usually possible during summer months.
. . . After emitting weird music like notes, the ferris wheel at the Elk Rapids Harbor Days summer festival started spinning wildly out of control last night! Although nobody was injured, this incident is currently being investigated.
Have a great weekend Facebook, Flickr, and 500px friends, and avoid riding the ferris wheel!
In a strikingly specific instance of mimicry, the patterns on the wings of this moth (Macrocilix maia) appear to resemble two flies feeding at a glistening bird dropping. This, coupled with a pungent odor that the moth emits, may be enough to dissuade a predator from considering a meal. Although flies are certainly edible, they nevertheless sometimes serve as models for mimicry because they are so quick and agile that most birds won't bother pursuing them. Sabah, Malaysia (Borneo).
The Milky Way rises over a fairly intimate canyon view in Canyonlands National Park in Utah. The green color in the sky is from airglow, a natural phenomenon that occurs in the upper atmosphere. Airglow is the result of various chemical reactions in the upper atmosphere that emit light, and on some nights it's much more active than others in certain areas. It's very difficult to see airglow with the naked eye, but the camera has no problem capturing the dim light in a long exposure. The bright glow on the left side of the horizon is light pollution from the town of Moab.
Nikon D810A with the Nikon 14-24mm f/2.8 lens @ 14mm. This is a blend of 10 images for the sky and 2 for the foreground. I took 10 shots focused for the stars at ISO 10,000 and 10 seconds each and then stacked them with Starry Landscape Stacker, available for Mac only (although you can do this technique in Photoshop but it's a pain and doesn't always work right). The result is pinpoint stars and low noise, as the 10 second exposure at 14mm is not enough to cause star trails, and the alignment and averaging of all 10 exposures averages out the noise, so you end up with a much cleaner result. I used one foreground shot at ISO 1600, f/2.8, for 15 minutes focused for the stars to get most of the landscape in focus (at f/2.8 at 14mm a lot is in focus), and I took another foreground shot at ISO 3200, f/5.6, for 30 minutes to get more of the close foreground on the left in focus. I then blended the resulting star stacked sky and the foreground exposures in Photoshop to create an image that has low noise and good focus from the foreground to the stars. Then creative effects were used to bring out detail and contrast.
Visit my website to learn more about my photos and video tutorials: www.adamwoodworth.com
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The sun emitted a mid-level solar flare, peaking at 2:23 EDT on June 22, 2015. NASA’s Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel.
To see how this event may affect Earth, please visit NOAA's Space Weather Prediction Center at spaceweather.gov, the U.S. government's official source for space weather forecasts, alerts, watches and warnings.
This flare is classified as a M6.6 flare. M-class flares are a tenth the size of the most intense flares, the X-class flares. The number provides more information about its strength. An M2 is twice as intense as an M1, an M3 is three times as intense, etc.
Credit: NASA/Goddard/SDO
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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Find us on Instagram
The Sobani Tesseract construction super capital on the move with a battleship escort.
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I forgot to post this pic of the Tesseract in low light. It shows the glow of the EL Wire that runs through the hull. Only the background and the engines have been edited. The light emitted by the El Wire is not tweaked in any way.
So what is EL Wire? It stands for Electro luminescent Wire, this wiki article explains it very well ... en.wikipedia.org/wiki/Electroluminescent_wire
EL Wire can be found on ebay for example and requires a high frequency sequencer that is usually sold in the same shops as those that sell the Wire. 3m of El wire and the sequencer required for this build cost something like 15euros. The sequencers require 2 AA or 2 AAA betteries.
There are various kinds of EL wire with different effects, frequencies and colors. They also come in various diameters. The 3.2mm diameter kind is very close to the size of a lego 'bar' so it can be clipped into a minifig hand for example without stress on the brick.
I hope this helps!
Essaouira lighthouse
A lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses, and to serve as a navigational aid for maritime pilots at sea or on inland waterways.
Lighthouses mark dangerous coastlines, hazardous shoals, reefs, and safe entries to harbors, and can assist in aerial navigation. Once widely used, the number of operational lighthouses has declined due to the expense of maintenance and use of electronic navigational systems.
Before the development of clearly defined ports, mariners were guided by fires built on hilltops. Since raising the fire would improve the visibility, placing the fire on a platform became a practice that led to the development of the lighthouse. In antiquity, the lighthouse functioned more as an entrance marker to ports than as a warning signal for reefs and promontories, unlike many modern lighthouses. The most famous lighthouse structure from antiquity was the Pharos of Alexandria, although it collapsed during an earthquake centuries later.
The intact Tower of Hercules at A Coruña, Spain gives insight into ancient lighthouse construction; other evidence about lighthouses exists in depictions on coins and mosaics, of which many represent the lighthouse at Ostia. Coins from Alexandria, Ostia, and Laodicea in Syria also exist.
The modern era of lighthouses began at the turn of the 18th century, as lighthouse construction boomed in lockstep with burgeoning levels of transatlantic commerce. Advances in structural engineering and new and efficient lighting equipment allowed for the creation of larger and more powerful lighthouses, including ones exposed to the sea. The function of lighthouses shifted toward the provision of a visible warning against shipping hazards, such as rocks or reefs.
The Eddystone Rocks were a major shipwreck hazard for mariners sailing through the English Channel. The first lighthouse built there was an octagonal wooden structure, anchored by 12 iron stanchions secured in the rock, and was built by Henry Winstanley from 1696 to 1698. His lighthouse was the first tower in the world to have been fully exposed to the open sea.
The civil engineer, John Smeaton, rebuilt the lighthouse from 1756–59; his tower marked a major step forward in the design of lighthouses and remained in use until 1877. He modelled the shape of his lighthouse on that of an oak tree, using granite blocks. He pioneered the use of "hydraulic lime," a form of concrete that will set under water, and developed a technique of securing the granite blocks together using dovetail joints and marble dowels. The dovetailing feature served to improve the structural stability, although Smeaton also had to taper the thickness of the tower towards the top, for which he curved the tower inwards on a gentle gradient. This profile had the added advantage of allowing some of the energy of the waves to dissipate on impact with the walls. His lighthouse was the prototype for the modern lighthouse and influenced all subsequent engineers.
One such influence was Robert Stevenson, himself a seminal figure in the development of lighthouse design and construction.[6] His greatest achievement was the construction of the Bell Rock Lighthouse in 1810, one of the most impressive feats of engineering of the age. This structure was based upon Smeaton's design, but with several improved features, such as the incorporation of rotating lights, alternating between red and white.Stevenson worked for the Northern Lighthouse Board for nearly fifty years during which time he designed and oversaw the construction and later improvement of numerous lighthouses. He innovated in the choice of light sources, mountings, reflector design, the use of Fresnel lenses, and in rotation and shuttering systems providing lighthouses with individual signatures allowing them to be identified by seafarers. He also invented the movable jib and the balance crane as a necessary part for lighthouse construction.
Alexander Mitchell designed the first screw-pile lighthouse – his lighthouse was built on piles that were screwed into the sandy or muddy seabed. Construction of his design began in 1838 at the mouth of the Thames and was known as the Maplin Sands lighthouse, and first lit in 1841. Although its construction began later, the Wyre Light in Fleetwood, Lancashire, was the first to be lit
more Morocco here
www.flickr.com/photos/23502939@N02/albums/72157623084954075
More candids here
The sun emitted three mid-level solar flares on July 22-23, 2016, the strongest peaking at 1:16 am EDT on July 23. The sun is currently in a period of low activity, moving toward what's called solar minimum when there are few to no solar eruptions – so these flares were the first large ones observed since April. They are categorized as mid-strength flares, substantially less intense than the most powerful solar flares.
NASA’s Solar Dynamics Observatory, which watches the sun constantly, captured images of the events. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel.
These flares were classified as M-level flares. M-class flares are the category just below the most intense flares, X-class flares. The number provides more information about its strength. An M2 is twice as intense as an M1, an M3 is three times as intense, etc.
Of these three flares: The first was an M5.0, which peaked at 10:11 pm EDT on July 22, 2016. The second -- the strongest -- was an M7.6, which peaked at 1:16 am EDT on July 23. The final was an M5.5, which peaked 15 minutes later at 1:31 am EDT.
To see how this event affected Earth, please visit NOAA's Space Weather Prediction Center, the U.S. government's official source for space weather forecasts, alerts, watches and warnings.
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MAQUETA DE SAN MARTÍN DE FRÓMISTA (Palencia)
Varios informes emitidos durante esta época reflejan el preocupante estado de la edificación que amenazaba ruina. La labor de restauración del templo se inicia poco después de su declaración como Monumento Nacional en 1894. Las labores de restauración quedan en manos del arquitecto Manuel Aníbal Álvarez Amoroso, quien se propone devolver el templo a su estado original, eliminando los añadidos posteriores. Los capiteles y canecillos más deteriorados fueron trasladados al Museo Arqueológico de Palencia, y sustituidos por reproducciones.
Las tareas de reconstrucción finalizaron en 1904, fecha en la que definitivamente se reabrió al público. En la actualidad puede contemplarse, en el interior de la propia iglesia, una maqueta que representa su situación en el momento de acometer su restauración.(Wikipedia)
La iglesia de Santa María la Blanca de Villalcázar de Sirga (provincia de Palencia, Castilla y León, España), llamada todavía también de Santa María de Lito (por ser este último el nombre de la localidad hasta el siglo XVII), es un templo-fortaleza empezado a construir a finales del siglo XII, en la transición del románico al gótico, y terminado en el siglo XIV. Hito del Camino de Santiago, del que ha sido uno de sus centros religiosos más importantes, y vinculado a la Orden del Temple, reviste un gran interés artístico, siendo los elementos más destacados el conjunto escultórico de la portada, protogótico del siglo XIII, la colección de sepulcros policromados en el interior, góticos de los siglos XIII y XIV, y el retablo mayor, gótico de los siglos XV y XVI.
En 2015, en la aprobación por la Unesco de la ampliación del Camino de Santiago en España a «Caminos de Santiago de Compostela: Camino francés y Caminos del Norte de España», España envió como documentación un «Inventario Retrospectivo - Elementos Asociados» (Retrospective Inventory - Associated Components) en el que en el n.º 1354 figura la iglesia parroquial de Santa María La Blanca. (Wikipedia)