Pictures Tagged universe
| tallmanthin posted a photo:
Which is worse? To die or to die with fear? | vue3d posted a photo:
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| SpaceboardJournal posted a photo:
NASA's Hubble Space Telescope snapped a view of what may be the youngest galaxy ever seen. This "late bloomer" may not have begun active star formation until about 13 billion years after the Big Bang. Called I Zwicky 18 [below, left], the galaxy may be as young as 500 million years old. This youngster has gone though several sudden bursts of star formation ? the first only some 500 million years ago and the latest only 4 million years ago. This galaxy is typical of the kinds of galaxies that inhabited the early universe. The galaxy is classified as a dwarf irregular galaxy and is much smaller than our Milky Way.
The two major starburst regions are the concentrated bluish-white knots embedded in the heart of the galaxy. The wispy blue filaments surrounding the central starburst region are bubbles of gas that have been heated by stellar winds and intense ultraviolet radiation unleashed by hot, young stars. The redder stars are slightly older stars and star clusters, but they are still less than 1 billion years old. A companion galaxy lies just above and to the right of the dwarf galaxy. The companion may be interacting with the dwarf galaxy and may have triggered that galaxy's recent star formation. The red blobs surrounding the dwarf galaxy are the dim glow from ancient fully formed galaxies.
This image was taken with Hubble's Advanced Camera for Surveys in 2003. | SpaceboardJournal posted a photo:
Like many other so-called planetary nebulae, IC 4406 exhibits a high degree of symmetry; the left and right halves of the Hubble image are nearly mirror images of the other. If we could fly around IC4406 in a starship, we would see that the gas and dust form a vast donut of material streaming outward from the dying star. From Earth, we are viewing the donut from the side. This side view allows us to see the intricate tendrils of dust that have been compared to the eye's retina. In other planetary nebulae, like the Ring Nebula (NGC 6720), we view the donut from the top.
The donut of material confines the intense radiation coming from the remnant of the dying star. Gas on the inside of the donut is ionized by light from the central star and glows. Light from oxygen atoms is rendered blue in this image; hydrogen is shown as green, and nitrogen as red. The range of color in the final image shows the differences in concentration of these three gases in the nebula.
Unseen in the Hubble image is a larger zone of neutral gas that is not emitting visible light, but which can be seen by radio telescopes.
One of the most interesting features of IC 4406 is the irregular lattice of dark lanes that criss-cross the center of the nebula. These lanes are about 160 astronomical units wide (1 astronomical unit is the distance between the Earth and Sun). They are located right at the boundary between the hot glowing gas that produces the visual light imaged here and the neutral gas seen with radio telescopes. We see the lanes in silhouette because they have a density of dust and gas that is a thousand times higher than the rest of the nebula. The dust lanes are like a rather open mesh veil that has been wrapped around the bright donut.
The fate of these dense knots of material is unknown. Will they survive the nebula's expansion and become dark denizens of the space between the stars or simply dissipate?
This image is a composite of data taken by Hubble's Wide Field Planetary Camera 2 in June 2001 by Bob O'Dell (Vanderbilt University) and collaborators and in January 2002 by The Hubble Heritage Team (STScI). Filters used to create this color image show oxygen, hydrogen, and nitrogen gas glowing in this object. |
| SpaceboardJournal posted a photo:
NGC 3132 is a striking example of a planetary nebula. This expanding cloud of gas, surrounding a dying star, is known to amateur astronomers in the southern hemisphere as the "Eight-Burst" or the "Southern Ring" Nebula.
The name "planetary nebula" refers only to the round shape that many of these objects show when examined through a small visual telescope. In reality, these nebulae have little or nothing to do with planets, but are instead huge shells of gas ejected by stars as they near the ends of their lifetimes. NGC 3132 is nearly half a light year in diameter, and at a distance of about 2000 light years is one of the nearer known planetary nebulae. The gases are expanding away from the central star at a speed of 9 miles per second.
This image, captured by NASA's Hubble Space Telescope, clearly shows two stars near the center of the nebula, a bright white one, and an adjacent, fainter companion to its upper right. (A third, unrelated star lies near the edge of the nebula.) The faint partner is actually the star that has ejected the nebula. This star is now smaller than our own Sun, but extremely hot. The flood of ultraviolet radiation from its surface makes the surrounding gases glow through fluorescence. The brighter star is in an earlier stage of stellar evolution, but in the future it will probably eject its own planetary nebula.
In the Heritage Team's rendition of the Hubble image, the colors were chosen to represent the temperature of the gases. Blue represents the hottest gas, which is confined to the inner region of the nebula. Red represents the coolest gas, at the outer edge. The Hubble image also reveals a host of filaments, including one long one that resembles a waistband, made out of dust particles which have condensed out of the expanding gases. The dust particles are rich in elements such as carbon. Eons from now, these particles may be incorporated into new stars and planets when they form from interstellar gas and dust. Our own Sun may eject a similar planetary nebula some 6 billion years from now. | SpaceboardJournal posted a photo:
A clash among members of a famous galaxy quintet reveals an assortment of stars across a wide colour range, from young, blue stars to aging, red stars.
This portrait of Stephan's Quintet, also known as the Hickson Compact Group 92, was taken by the new Wide Field Camera 3 (WFC3) aboard the NASA/ESA Hubble Space Telescope. Stephan's Quintet, as the name implies, is a group of five galaxies. The name, however, is a bit of a misnomer. Studies have shown that group member NGC 7320, at upper left, is actually a foreground galaxy that is about seven times closer to Earth than the rest of the group.
Three of the galaxies have distorted shapes, elongated spiral arms, and long, gaseous tidal tails containing myriad star clusters, proof of their close encounters. These interactions have sparked a frenzy of star birth in the central pair of galaxies. This drama is being played out against a rich backdrop of faraway galaxies.
Read more at: spacetelescope.org/images/heic0910i/
Credit: NASA, ESA and the Hubble SM4 ERO Team ? ? Miroslav Mihailovic, Bojana Ignjatovic, Crisanto Fugio, Izdavacka Kuca Clio Beograd, Gijo Johnson, Dragana Matic, Ana Marinkovic, Sanja Vucicevic, Biljana Tesanovic, Ana Aleksic-Lukic, Marko Matic, Bosko Roganovic, Marcin Siwak, OrionBelanit Alarcón, Andres Risi, Jelena Muci?, Darby Westerlund, Samanyu Saji, Alexandra Tesic, Darkson Freeman, Ashwin Cyriak Joshy, Atukunda Angel, Mike Hayes, Muk Carolyn, Amrithraj Dreamboy, Heidi Driver, Vodopadi Srbije, Mike Gregory, Luka Todorovic, Nemanja Urosevic, Sandrita Peña Guevara, Sarah Zugno, Mirjana Mihailovic, Massimo Sforzini, Stuart Metcalf, Ana Cronismo, Mirjana Tesanovic, Milena Grbic Avramovic, Akastin Agu, Bharat Shinde, Rober Bandiera, Marya Teresa, Danijela Savic, Nevena Djurisic, Dragan Galic, Jean Holland, Dragan Dragana Filipovi?, Silvia CaBu ? Marija Mihailovic Ex Kunaica. |
| SpaceboardJournal posted a photo:
The Hubble Space Telescope captured this beautiful image of NGC 6326, a planetary nebula with glowing wisps of outpouring gas that are lit up by a central star nearing the end of its life. When a star ages and the red giant phase of its life comes to an end, it starts to eject layers of gas from its surface leaving behind a hot and compact white dwarf. Sometimes this ejection results in elegantly symmetric patterns of glowing gas, but NGC 6326 is much less structured. This object is located in the constellation of Ara, the Altar, about 11 000 light-years from Earth.
Planetary nebulae are one of the main ways in which elements heavier than hydrogen and helium are dispersed into space after their creation in the hearts of stars. Eventually some of this outflung material may form new stars and planets. The vivid red and blue hues in this image come from the material glowing under the action of the fierce ultraviolet radiation from the still hot central star.
This picture was created from images taken using the Hubble Space Telescope?s Wide Field Planetary Camera 2. The red light was captured through a filter letting through the glow from hydrogen gas (F658N). The blue glow comes from ionised oxygen and was recorded through a green filter (F502N). The green layer of the image, which shows the stars well, was taken through a broader yellow filter (F555W). The total exposure times were 1400 s, 360 s and 260 s respectively. The field of view is about 30 arcseconds across.
Credit: NASA/ESA/Hubble ? ? www.facebook.com/hubbleESA. | SpaceboardJournal posted a photo:
This striking Hubble image of the planetary nebula IC 4634 reveals two shining, S-shaped ejections from a dying star. This star, awash in glowing material at the centre of the picture, bloated as it aged and launched its outer layers off into space. The star?s very hot, exposed core has since beamed intense ultraviolet radiation at these lost shells of gas, making them glow in rich colours.
This process has been far from orderly or calm, however, as revealed by the distinct, separate waves of thrown-off gases. One is more distant and therefore was spewed first, followed by a more recently ejected tide of matter that formed the tighter S-shape. The result is remarkably symmetric on each side of the central star.
The NASA/ESA Hubble Space Telescope?s Wide Field Planetary Camera 2 (WFPC2) captured this image of IC 4634, which is found more than about 7500 light-years away in the constellation of Ophiuchus (the Serpent Holder). IC 4634 and other objects like it are known as planetary nebulae due to their appearance through early telescopes as rounded, faintly luminous discs similar to the distant planets Uranus and Neptune. The picture was created from images through five different filters (F487N, F502N, F574M, F656N and F658N) that captured light emitted by different elements in the gaseous features. The total aggregate exposure time was 4000 seconds and the field of view is just 29 arcseconds across.
Credit: NASA/ESA/Hubble ? ? www.facebook.com/hubbleESA. |
| danielxiafei posted a photo:
A recent purchase of my first ever pop vinyl collectible statue from Funko toys, the pop vinyl Halo Universe "Master Chief".
I gave his armor a little bit detailed paint job as well as his rifle. He can stand by himself quite well. To my surprise, his helmet sculpt is super neat!
He stands around 3.75''. The bad side, the neck is his only point of articulation. However, his default pose is quite comforting.
I'll definitely be happy to recommend him to any Master Chief fans or small scaled statue/figure collector. | iamirrr posted a photo:
selfportrait |
| Andy Fox Photography posted a photo:
Coastline of Prawle Point, Kingsbridge, Devon, UK | SpaceboardJournal posted a photo:
Nepal, ACAP, Annapurna Sanctuary, Modi Khola Valley, 2011 | 30 sec, f/1.6, ISO 2500, FL 24 mm
This was shot on the way to Annapurna Base Camp (ABC).
If you are interested in traveling to Nepal, on 19-30 October we offer a photo-tour around the most beautiful places of Nepal. If you are interested or have any question, please send us a private message.
?????????? ??? ??????? ??????? ? ????????: N.E.P.A.L. - Never Ending Peace And Love (19-30 ???????, 12 ????) - jankovoy.livejournal.com/34147
By Anton Jankovoy (www.jankovoy.com) |
| SpaceboardJournal posted a photo:
SCIENTISTS FIND EVIDENCE FOR ?GREAT LAKE? ON EUROPA AND POTENTIAL NEW HABITAT FOR LIFE:
In a significant finding in the search for life beyond Earth, scientists from The University of Texas at Austin and elsewhere have discovered what appears to be a body of liquid water the volume of the North American Great Lakes locked inside the icy shell of Jupiter?s moon Europa.
The water could represent a potential habitat for life, and many more such lakes might exist throughout the shallow regions of Europa?s shell, lead author Britney Schmidt, a postdoctoral fellow at The University of Texas at Austin?s Institute for Geophysics, writes in the journal Nature.
Further increasing the potential for life, the newly discovered lake is covered by floating ice shelves that seem to be collapsing, providing a mechanism for transferring nutrients and energy between the surface and a vast ocean already inferred to exist below the thick ice shell. | Nigel Blake posted a photo:
The Arcminute Microkelvin Imager (AMI) interferometer radio telescope principally designed to image secondary anisotropies in the cosmic microwave background (CMB), which is the remnants of the Big Bang, at higher angular resolution. Mullard Radio Astronomy Observatory, Barton near Cambridge (UK). _26K9402 Panoramic crop. |
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