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Noctilucent Clouds over London
Image Credit & Copyright: Christoph Malin (TWAN)
http://apod.nasa.gov/apod/ap140710.html

This scene from the early morning hours of July 3 looks out across the River Thames from the Westminster Bridge. Part of a luminous timelapse video (vimeo), the frame captures a sight familiar in London, the nighttime glow of the London Eye. But a not-so-familiar sight is shining in the still dark sky above, widespread noctilucent clouds. From the edge of space, about 80 kilometers above Earth's surface, the icy clouds can still reflect sunlight even though the Sun itself is below the horizon as seen from the ground. Usually spotted at high latitudes in summer months the diaphanous apparitions are also known as polar mesospheric clouds. The seasonal clouds are understood to form as water vapor driven into the cold upper atmosphere condenses on the fine dust particles supplied by disintegrating meteors or volcanic ash. NASA's AIM mission provides daily projections of the noctilucent clouds as seen from space.
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Sasita S.'s profile photoYoav Raz's profile photoDato Barabadze's profile photojimmy arellano's profile photo
14 comments
 
Love this
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Iridescent Clouds over Thamserku
Image Credit & Copyright: Oleg Bartunov
http://apod.nasa.gov/apod/ap140708.html

Why would a cloud appear to be different colors? A relatively rare phenomenon known as iridescent clouds can show unusual colors vividly or a whole spectrum of colors simultaneously. These clouds are formed of small water droplets of nearly uniform size. When the Sun is in the right position and mostly hidden by thick clouds, these thinner clouds significantly diffract sunlight in a nearly coherent manner, with different colors being deflected by different amounts. Therefore, different colors will come to the observer from slightly different directions. Many clouds start with uniform regions that could show iridescence but quickly become too thick, too mixed, or too far from the Sun to exhibit striking colors. The above iridescent cloud was photographed in 2009 from the Himalayan Mountains in Nepal, behind the 6,600-meter peak named Thamserku.
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Kiran Garcha's profile photoMary Valdez's profile photoKimber Bowman's profile photoCarl McCready's profile photo
241 comments
 
Someone @NASA needs to answer for playing a big part in worldwide network human predation. Some See Ed Obannon's "perspective summary pdf", for predators of humanity, clique members and their minions, monarchy/knights/jesuits pope and their long brain owners/masters, 1) deportation far from their home country, 2) solitary confinement, no parole. It's that bad and it's going down now. Israel and US/Kiev fascists are bombing people covering for each other. It's going down as the worst by far in human history, until the end of time. But on the other hand, behold the birth of humanity. The real "renaissance". We get to see it!
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Manhattanhenge: A New York City Sunset
Image Credit & Copyright: Neil deGrasse Tyson (+American Museum of Natural History)
http://apod.nasa.gov/apod/ap140706.html

This coming Saturday, if it is clear, well placed New Yorkers can go outside at sunset and watch their city act like a modern version of Stonehenge. Manhattan's streets will flood dramatically with sunlight just as the Sun sets precisely at each street's western end. Usually, the tall buildings that line the gridded streets of New York City's tallest borough will hide the setting Sun. This effect makes Manhattan a type of modern Stonehenge, although only aligned to about 30 degrees east of north. Were Manhattan's road grid perfectly aligned to east and west, today's effect would occur on the Vernal and Autumnal Equinox, March 21 and September 21, the only two days that the Sun rises and sets due east and west. Pictured above in this horizontally stretched image, the Sun sets down 34th Street as viewed from Park Avenue. If Saturday's sunset is hidden by clouds do not despair -- the same thing happens twice each year: in late May and mid July. On none of these occasions, however, should you ever look directly at the Sun.
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Rachel A's profile photoFarvahar Homayoun Ir's profile photoOSVALDO CESA's profile photoElena D's profile photo
97 comments
 
We have a few days of the new York NY and I can you have to be able and the other day of the new York and I have to be able and the other day of this message and the other than the next to be able and the other day of this message
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Along the Cygnus Wall
Image Credit & Copyright: Martin Pugh
http://apod.nasa.gov/apod/ap140703.html

The prominent ridge of emission featured in this vivid skyscape is known as the Cygnus Wall. Part of a larger emission nebula with a distinctive shape popularly called The North America Nebula, the ridge spans about 10 light-years along an outline that suggests the western coast of Mexico. Constructed from narrowband image data, the cosmic close-up maps emission from sulfur, hydrogen, and oxygen atoms to red, green, and blue colors. The result highlights the bright ionization front with fine details of dark, dusty forms in silhouette. Sculpted by energetic radiation from the region's young, hot, massive stars, the dark shapes inhabiting the view are clouds of cool gas and dust with stars likely forming within. The North America Nebula itself, NGC 7000, is about 1,500 light-years away. To find it, look northeast of bright star Deneb in the high flying constellation Cygnus.
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vikrant chauhan's profile photoBeatrice de Villiers's profile photoAstrid Lakota's profile photoJesse Luna's profile photo
27 comments
 
amazing...Space is infinite..
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Wolf-Rayet Star 124: Stellar Wind Machine
Image Credit: Hubble Legacy Archive, +NASA, +European Space Agency, ESA - Processing & Licence: Judy Schmidt
http://apod.nasa.gov/apod/ap140701.html

Some stars explode in slow motion. Rare, massive Wolf-Rayet stars are so tumultuous and hot that they slowly disintegrating right before our telescopes. Glowing gas globs each typically over 30 times more massive than the Earth are being expelled by violent stellar winds. Wolf-Rayet star WR 124, visible near the above image center spanning six light years across, is thus creating the surrounding nebula known as M1-67. Details of why this star has been slowly blowing itself apart over the past 20,000 years remains a topic of research. WR 124 lies 15,000 light-years away towards the constellation of Sagitta. The fate of any given Wolf-Rayet star likely depends on how massive it is, but many are thought to end their lives with spectacular explosions such as supernovas or gamma-ray bursts.
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Paula Chervinsky's profile photoAlvaro Hernantes's profile photoLuqman Shah's profile photoJesse Luna's profile photo
60 comments
 

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Galaxy Cove Vista Revisited
Image Credit & Copyright: Rogelio Bernal Andreo (Deep Sky Colors)
http://apod.nasa.gov/apod/ap140629.html

To see a vista like this takes patience, hiking, and a camera. Patience was needed in searching out just the right place and waiting for just the right time. A short hike was needed to reach this rugged perch above a secluded cove in Julia Pfeiffer Burns State Park in California, USA. And a camera was needed for the long exposure required to bring out the faint light from stars and nebulae in the background Milky Way galaxy. Moonlight illuminated the hidden beach and inlet behind nearby trees in the above composite image taken last month. Usually obscured McWay Falls is visible just below the image center, while the Pacific Ocean is in view to its right. The above image is a high-resolution sequel to a similar image that appeared last year.
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Maarten Haubrich's profile photoArrabella Spring's profile photoAlvaro Hernantes's profile photoAhmad Azizi's profile photo
113 comments
 
WONDERFUL 
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Have them in circles
692,761 people
 
Gliese 832c: The Closest Potentially Habitable Exoplanet
Image Credit & Copyright: The Planetary Habitability Laboratory @ UPR Arecibo; Discovery: Robert A. Wittenmyer (UNSW Australia) et al.
http://apod.nasa.gov/apod/ap140709.html

This planet is only 16 light years away -- could it harbor life? Recently discovered exoplanet Gliese 832c has been found in a close orbit around a star that is less bright than our Sun. An interesting coincidence, however, is that Gliese 832c receives just about the same average energy from its parent star as does the Earth. Since the planet was discovered only by a slight wobble in its parent star's motion, the above illustration is just an artistic guess of the planet's appearance -- much remains unknown about Gliese 832c's true mass, size, and atmosphere. If Gliese 832c has an atmosphere like Earth, it may be a super-Earth undergoing strong seasons but capable of supporting life. Alternatively, if Gliese 832c has a thick atmosphere like Venus, it may be a super-Venus and so unlikely to support life as we know it. The close 16-light year distance makes the Gliese 832 planetary system currently the nearest to Earth that could potentially support life. The proximity of the Gliese 832 system therefore lends itself to more detailed future examination and, in the most spectacularly optimistic scenario, actual communication -- were intelligent life found there.
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Geneva Titsworth's profile photoArrabella Spring's profile photoJon Mark Wahlstrom's profile photoGerMan Droide's profile photo
194 comments
 
"Science is OUTDATING Religion". #theblindinglightofmisinformationmustend
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J1502+1115: A Triple Black Hole Galaxy
Image Credit: R. P. Deane (U. Capetown) et al.
http://apod.nasa.gov/apod/ap140707.html

Most galaxies contain one supermassive black hole -- why does this galaxy have three? The likely reason is that galaxy J1502+1115 is the product of the recent coalescence of three smaller galaxies. The two closest black holes are shown above resolved in radio waves by large coordinated array of antennas spread out over Europe, Asia, and Africa. These two supermassive black holes imaged are separated by about 500 light years and each has a likely mass about 100 million times the mass of our Sun. Currently, J1502+1115, at a redshift of 0.39, is one of only a few triple black hole system known and is being studied to learn more about galaxy and supermassive black hole interaction rates during the middle ages of our universe. Gravitational radiation emitted by such massive black hole systems may be detectable by future observatories.
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LUIS LAURO TREVIÑO PÉREZ's profile photoAman Sharma's profile photochrissy koebel's profile photoJesse Luna's profile photo
54 comments
 
All you guys... and girls, fucking rock, to cool, you all my day, also.
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M106 Across the Spectrum
Image Credit: X-ray - +NASA / CXC / Caltech / P.Ogle et al., 
Optical - NASA/STScI, IR - NASA/JPL-Caltech, Radio - NSF/NRAO/VLA
http://apod.nasa.gov/apod/ap140705.html

The spiral arms of bright, active galaxy M106 sprawl through this remarkable multiwavelength portrait, composed of image data from radio to X-rays, across the electromagnetic spectrum. Also known as NGC 4258, M106 can be found toward the northern constellation Canes Venatici. The well-measured distance to M106 is 23.5 million light-years, making this cosmic scene about 60,000 light-years across. Typical in grand spiral galaxies, dark dust lanes, youthful star clusters, and star forming regions trace spiral arms that converge on a bright nucleus. But this composite highlights two anomalous arms in radio (purple) and X-ray (blue) that seem to arise in the central region of M106, evidence of energetic jets of material blasting into the galaxy's disk. The jets are likely powered by matter falling into a massive central black hole.
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Debi Weiser's profile photoAlvaro Hernantes's profile photoIna Almacen's profile photoDaisy Karr's profile photo
34 comments
 
Absolutely beautiful thank you for sharing this is amazing
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OCO-2 Night Launch
Image Credit & Copyright: Rick Baldridge
http://apod.nasa.gov/apod/ap140704.html

In this alluring time exposure, star trails arc across the night sky above foggy Monterey Bay and the lights of Santa Cruz, California in the United States of America. Since the exposure began around 2:56am PDT on July 2 it also records the trail of a Delta II rocket lofting NASA's OCO-2 spacecraft into orbit. Seen from a vantage point 200 miles north of the Vandenberg Air Force Base launch site, the trail represents the first five minutes of the rocket's flight along a trajectory south and west over the Pacific to join the A-Train in polar orbit around planet Earth. The entire trail through main engine cut-off is captured, with a very faint puff at the end marking the nose fairing separation. Under the rocket's path, the two brightest trails are the alpha and beta stars of the constellation Grus, flying high in southern skies. The OCO-2 mission goal is a study of atmospheric carbon dioxide, watching from space as planet Earth breathes.
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Reinka Ratti's profile photoRodica Gavrila's profile photoLisa Curtis - Smith - Bridgman's profile photoJesse Luna's profile photo
2 comments
 
Cool
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NGC 4651: The Umbrella Galaxy
Image Credit & Copyright: R Jay Gabany (Blackbird Observatories) 
Collaboration: C.Foster (Australian Astronomical Obs.), H.Lux (U. Nottingham, Oxford), A.Romanowsky (San Jose State, UCO), D.Martínez-Delgado (Heidelberg), et al.
http://apod.nasa.gov/apod/ap140702.html

Spiral galaxy NGC 4651 is a mere 62 million light-years distant, toward the well-groomed northern constellation Coma Berenices. About the size of our Milky Way, this island universe is seen to have a faint umbrella-shaped structure that seems to extend (left) some 100 thousand light-years beyond the bright galactic disk. The giant cosmic umbrella is now known to be composed of tidal star streams - extensive trails of stars gravitationally stripped from a smaller satellite galaxy. The small galaxy was eventually torn apart in repeated encounters as it swept back and forth on eccentric orbits through NGC 4651. In fact, the picture insert zooms in on the smaller galaxy's remnant core, identified in an extensive exploration of the system, using data from the large Subaru and Keck telescopes on Mauna Kea. Work begun by a remarkable collaboration of amateur and professional astronomers to image faint structures around bright galaxies suggests that even in nearby galaxies, tidal star streams are common markers of such galactic mergers. The result is explained by models of galaxy formation that also apply to our own Milky Way.
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Beatrice de Villiers's profile photoJérôme Tremblay's profile photoLisa Curtis - Smith - Bridgman's profile photoJesse Luna's profile photo
45 comments
 
+Ángel Arós Exactly what do thought xD
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Peculiar Elliptical Galaxy Centaurus A
Image Credit & Copyright: Roberto Colombari
http://apod.nasa.gov/apod/ap140630.html

What's happened to the center of this galaxy? Unusual and dramatic dust lanes run across the center of elliptical galaxy Centaurus A. These dust lanes are so thick they almost completely obscure the galaxy's center in visible light. This is particularly unusual as Cen A's red stars and round shape are characteristic of a giant elliptical galaxy, a galaxy type usually low in dark dust. Cen A, also known as NGC 5128, is also unusual compared to an average elliptical galaxy because it contains a higher proportion of young blue stars and is a very strong source of radio emission. Evidence indicates that Cen A is likely the result of the collision of two normal galaxies. During the collision, many young stars were formed, but details of the creation of Cen A's unusual dust belts are still being researched. Cen A lies only 13 million light years away, making it the closest active galaxy. Cen A, pictured above, spans 60,000 light years and can be seen with binoculars toward the constellation of Centaurus.
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James Barbieri's profile photoJesse Luna's profile photoDan Schmitzer's profile photoyumi szigriszt's profile photo
31 comments
 
and then fall back again :)
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Discover the cosmos!
Introduction
Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.