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Author Topic: Science Photo of the Week  (Read 467589 times)

Offline neilep

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Cassini radar shows diversity on Saturn's moon Titan
CASSINI PHOTO RELEASE

This radar image of the surface of Saturn's moon Titan was acquired on October 26, 2004, when the Cassini spacecraft flew approximately 1,200 kilometers (745 miles) above the surface and acquired radar data for the first time. It reveals a complex geologic surface thought to be composed of icy materials and hydrocarbons.

A wide variety of geologic terrain types can be seen on the image; brighter areas may correspond to rougher terrains and darker areas are thought to be smoother. A large dark circular feature is seen at the western (left) end of the image, but very few features resembling fresh impact craters are seen. This suggests that the surface is relatively young. Enigmatic sinuous bright linear features are visible, mainly cutting across dark areas.

 




The image is about 150 kilometers (93 miles) wide and 250 kilometers (155 miles) long, and is centered at 50 N, 82 W in the northern hemisphere of Titan, over a region that has not yet been imaged optically. The smallest details seen on the image are about 300 meters (186 miles) across.


WELL BIG IMAGE HERE !!http://photojournal.jpl.nasa.gov/jpeg/PIA06988.jpg

SOURCE: SPACEFLIGHTNOW.COM


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Evolutionary Shrinkage:
Stone Age Homo find offers small surprise

Big evolutionary insights sometimes come in little packages. Witness the startling discovery, in a cave on the eastern Indonesian island of Flores, of the partial skeleton of a half-size Homo species that lived there at the same time that ancient Homo sapiens inhabited nearby regions.





LITTLE BIG FIND. The newly discovered Homo floresiensis skull (left) comes up short next to a Homo sapiens skull (right).

The new species, dubbed Homo floresiensis, reached the island at least 38,000 years ago and lived there until it died out near the end of the Stone Age, roughly 20,000 years later, conclude the authors of two papers in the Oct. 28 Nature. The researchers say that the Flores find represents an adult, probably a female, who stood about 3 feet, 3 inches tall (1 meter) and weighed approximately 35 pounds (16 kilograms).

This individual's brain was only about as large as those of australopithecines, which were apelike members of the human evolutionary family that preceded Homo.


SOURCE: SCIENCENEWS.ORG

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Pit chains hint at recent marsquakes on red planet
SOUTHWEST RESEARCH INSTITUTE NEWS RELEASE




Strings of depressions dotting the Martian landscape indicate that seismic activity - marsquakes - may still be reshaping the surface of the planet, according to Dr. David Ferrill of Southwest Research Institute in a paper published in GSA Today. These pit chains occur along dilational faults, partially filled or open cavities that served as conduits for past groundwater flow.

"These faults could now serve as reservoirs for water or ice, making these locations of potentially great interest to the scientific community searching for signs of life on Mars," said Ferrill, a senior program manager at SwRI.

SOURCE: SPACEFLIGHTNOW.COM

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Who laid the first egg?
Scientists move a step closer to linking embryos of earth's first animals to adult form
Public Release: 1-Nov-2004


Blacksburg, Va. In 1998, Shuhai Xiao and colleagues reported finding thousands of 600 million year old embryo microfossils in the Neoproterozoic Doushantuo Formation, a fossil site near Weng'an, South China, (Xiao, S., Zhang, Y., and Knoll, A.H., 1998, "Three-dimensional preservation of algae and animal embryos in a Neoproterozoic phosphorite," Nature, v. 391). Within the egg cases they examined at that time, they discovered animals in the first stages of development from a single cell to only a few dozen cells. "The cellular preservation is amazing," says Xiao, assistant professor of geosciences at Virginia Tech.



Animal embryos




But what kind of adult would these ancient embryos have hatched into?

In 2000, Xiao's team reported the discovery of a coral-like animal that might be a candidate for parenthood (Xiao, S., Yuan, X., and Knoll, A.H., 2000, "Eumetazoan fossils in terminal Proterozoic phosphorites?" Proceedings of the National Academy of Sciences, USA, v. 97). "It was tubular, not spherical. But in some of the best specimens, we could see that the tube branches and has cross-walls," Xiao said. "But can it be linked to the embryos?"

Upon examination of more embryos collected from the original site, Xiao's research team has discovered some embryos that may be at the hatching stage. He will report on this latest finding at the Geological Society of America meeting in Denver Nov. 7-10.

"Looking now at these egg cases, we can see clockwise spiral grooves, as if a knife sliced the egg open," Xiao said. "The embryo was beginning to hatch. When we removed the egg case, we found that the post blastula but pre-hatching embryo at this stage is beginning to transform into a spiral animal. Each such animal had three clockwise spires. After hatching, the spiral organism began to uncoil slightly," Xiao said.

"They look as if they can unwind to a tube structure. We are looking for more evidence, but if that is true, it might link the embryo fossils to the tubular coral-like animal."

The researchers will slice open a hatched embryo specimen that appears to be unwinding to see if it has cross-walls. "That would indicate it is related to the tubes," Xiao said.

"These organisms lived 600 million years ago before big animals. This the very first moment of animal evolution preserved in the fossil record."




Branched tubular fossils preserved in Doushantuo phosphorites

SOURCE: eurekalert.org



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« Last Edit: 01/11/2004 20:05:58 by neilep »
 

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Laser technology helps track changes in Mount St. Helens

NASA NEWS RELEASE

U.S. Geological Survey (USGS) and NASA scientists studying Mount St. Helens are using high-tech Light Detection and Ranging (LIDAR) technology to analyze changes in the surface elevation of the crater, which began deforming in late September 2004.


 

Elevation differences in the crater were found between two airborne LIDAR surveys conducted in September 2003 and October 4, 2004. The image is a computer-generated representation of the October 4 topography. The superimposed colors indicate areas of change: areas where elevation has lowered between 0.5 to 30 meters (blue); areas where elevation has increased between 1.5 to 40 m, 40 m to 80 m, and 80 m to 120 m are green, yellow, and orange, respectively.  Credit: USGS and NASA

With data derived from airborne LIDAR, scientists can accurately map, often in exquisite detail, the dimensions of the uplift and create better models to forecast volcanic hazards. LIDAR shows, in the two weeks before Oct. 4, the new uplift grew to the height of a 35-story building (110 meters or 360 feet) and the area of 29 football fields (130,000 square meters).

SOURCE:spaceflightnow.com

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Hubble spots rare triple eclipse on Jupiter


SPACE TELESCOPE SCIENCE INSTITUTE NEWS RELEASE
At first glance, Jupiter looks like it has a mild case of the measles. Five spots -- one colored white, one blue, and three black -- are scattered across the upper half of the planet. Closer inspection by NASA's Hubble Space Telescope reveals that these spots are actually a rare alignment of three of Jupiter's largest moons -- Io, Ganymede, and Callisto -- across the planet's face.


 

In this image, the telltale signatures of this alignment are the shadows [the three black circles] cast by the moons. Io's shadow is located just above center and to the left; Ganymede's on the planet's left edge; and Callisto's near the right edge. Only two of the moons, however, are visible in this image. Io is the white circle in the center of the image, and Ganymede is the blue circle at upper right. Callisto is out of the image and to the right.


This illustration plots the positions of Io, Europa, Ganymede, and Callisto on March 28, 2004, when the Hubble Space Telescope made the observations of the triple eclipse on Jupiter. The graphic shows the shadows cast on Jupiter by Io, Ganymede, and Callisto. Credit: NASA, ESA, A. Feild and C. Klicka (STScI
In this image, the moons and shadows that crossed Jupiter's face are labeled. The Hubble Space Telescope captured the rare triple eclipse on March 28, 2004. Credit: NASA, ESA, E. Karkoschka (University of Arizona) and Z. Levay (STScI)

SOURCE:SPACEFLIGHT.COM


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Hide and See
Conflicting views of reef-fish colors
Susan Milius

A lot of things can be said about a shirt that sports images of coral-reef fish, but "subtly colored" isn't one of them. Oddly enough, that characterization does get used when biologists talk about the reef creatures. Although the fish may dazzle the human eye with scarlet, rose, yellow, turquoise, emerald, and dozens of other shades, some theorists have proposed that, in the complexity of a reef, the riot of fish colors serves as camouflage.




POPULAR HUES. Calculations based on fish vision suggest that from a distance yellows blend in with a generic reef background, and the blues fade into vistas of water. A fish among branching corals would be hidden like a soldier wearing camouflage.


COLOR TILES. Close-ups of fish skin reveal the abundance of dramatic colors that has inspired theorists for more than a century, though plenty of their ideas about the evolutionary forces behind the colors haven't held up.
Marshall


SOURCE:www.sciencenews.org

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Radar image shows Titan's surface live and in colorCASSINI PHOTO RELEASE
Posted: November 6, 2004

Saturn's moon Titan shows a sharp contrast between its smooth and rough edges in a new false-color radar image.

Titan's surface lies beneath a thick coat of hazy clouds, but Cassini's radar instrument can peer through to show finer surface features. Scientists have added color to emphasize finer details on Titan, as shown in the image.

To provide a better perspective of the surface features, the color image is shown next to a black-and-white image that was previously released.





The area shown is in the northern hemisphere of Titan and is about 150 kilometers (93 miles) wide by 300 kilometers (186 miles) long. The image is a part of a larger strip created from data taken on Oct. 26, 2004, when the Cassini spacecraft flew approximately 1,200 kilometers (745 miles) above Titan's surface.

WELL BIG version of piccy here http://photojournal.jpl.nasa.gov/jpeg/PIA06992.jpg

SOURCE: SPACEFLIGHTNOW.COM

What's YOUR favourite source ?...I love Toffee and maple Syrup and praline.....*sigh*....I'm sooooooooooo alone on this thread aren't I ?



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Offline roberth

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This is one of my favourite threads, Neil. Look at how many views there's been. Keep up the good work.
 

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*sigh*...thanks Roberth....you're a star and I'll continue the work....

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Cassini sees objects, density waves in Saturn's rings
UNIVERSITY OF COLORADO-BOULDER NEWS RELEASE

A University of Colorado at Boulder-built instrument riding on the Cassini-Huygens spacecraft is being used to resolve objects in Saturn's rings smaller than a football field, making them twice as sharp as any previous ring observations.






This false color image of two density waves in Saturn's A ring was made from the stellar occultation
 observed by Cassini's ultraviolet imaging spectrograph. Bright areas indicate the denser regions of the rings.
 The bright bands in the left part of the image are the "peaks" of a density wave caused by gravitational stirring of
the rings by Saturn's moon, Janus. A smaller density wave in the right half of the image is produced by the moon Pandora.
 The ultraviolet imaging spectrograph observed the brightness of the star Xi Ceti as the rings passed in front of it, and the
flickering of the starlight was converted into the ring density depicted by the image. The image represents a distance of
 about 724 kilometers (450 miles), and the smallest features are about one-half mile across. Credit: NASA/JPL/University
 of Colorado at Boulder


Joshua Colwell of CU-Boulder's Laboratory for Atmospheric and Space Physics said the observations were made with Ultraviolet Imaging Spectrograph, or UVIS, when Cassini was about 4.2 million miles, or 6.75 million kilometers, from Saturn in July. Saturn orbits the Sun roughly 1 billion miles distant from Earth.

Colwell and his colleagues used a technique known as stellar occultation to image the ring particles, pointing the instrument through the rings towards the star, Xi Ceti. The fluctuations of starlight passing through the rings provide information on the structure and dynamics of the particles within them, said Colwell, a UVIS science team member.

He likened the Saturn system to a mammoth phonograph record, with the planet in the middle and the rings stretching outward more than 40,000 miles, or 64,000 kilometers. The size of the ring particles varies from dust specks to mountains, with most ranging between the size of marbles and boulders, he said.

Bigger image here http://photojournal.jpl.nasa.gov/jpeg/PIA06994.jpg

SOURCE: SPACEFLIGHTNOW.COM


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Himalaya glaciers melt unnoticed

By Navin Singh Khadka
BBC News in Nepal



Environmentalists are warning that the melting of glaciers in the Himalayas could spell disaster for millions of people living in the region.
They claim the situation is not being adequately monitored; the last studies having been done in the 1990s.
Swelling glacial lakes would increase the risk of catastrophic flooding.
In the long term, the glaciers could disappear altogether, causing several rivers to shrink and threatening the survival of those who depend on them.
"It is high time we did field studies to assess the situation or else a big natural catastrophe could hit us anytime," said Arun Bhakta Shrestha from Nepal's Department of Hydrology and Meteorology.

Global warming

There are 3,300 glaciers in the Nepalese Himalayas and 2,300 of them contain glacial lakes. These lakes are quietly growing due to global warming, but no one is keeping a close eye on them, environmentalists say.
   

Nobody knows how many are close to bursting, and no steps have been taken to establish early warning systems for the villages downstream.

A burst lake would cause flash floods which could sweep away people, houses, roads and bridges in Nepal, Bhutan, Bangladesh and India.

Such disasters have already happened more than a dozen times around Nepal in the last 70 years

SOURCE: BBC

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Offline roberth

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quote:
Originally posted by neilep
"It is high time we did field studies to assess the situation or else a big natural catastrophe could hit us anytime," said Arun Bhakta Shrestha from Nepal's Department of Hydrology and Meteorology.



Don't you love these blokes. Why isn't he doing the study instead of talking about it? Typical bloody public servant, it sounds like it is his department's responsibility. C'mon Mr Shrestha, do the bloody study.
 

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Spitzer discovery is good news for planet Pluto

UNIVERSITY OF ARIZONA NEWS RELEASE


Pluto's status as our solar system's ninth planet may be safe if a recently discovered Kuiper Belt Object is a typical "KBO" and not just an oddball. Astronomers have new evidence that KBOs are smaller than previously thought.


Our distant sun twinkles in this artist's conception of a distant Kuiper Belt Object. Illustration: NASA/JPL



KBOs - icy cousins to asteroids and the source of some comets - are the leftover building blocks of the outer planets. Astronomers using the world's most powerful telescopes have discovered about 1,000 of these objects orbiting beyond Neptune since discovering the first one in 1992. These discoveries fueled debate on whether Pluto is a planet or a large (1,400-mile diameter) closer-in KBO.

Researchers estimate that the total mass of the Kuiper Belt is about a tenth of Earth's mass. Most theorize that there are more than 10,000 KBOs with diameters greater than 100 kilometers (62 miles), compared to 200 asteroids known to be that large in the main asteroid belt between Mars and Jupiter.

SOURCE: SPACEFLIGHTNOW.COM


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Weird weather of Uranus
UNIVERSITY OF WISCONSIN NEWS RELEASE


Capitalizing on the incomparable optical capabilities of the Keck Telescope, scientists have gained an unprecedented look at the atmosphere of Uranus, providing new insight into some of the most enigmatic weather in the solar system.


The two sides of the planet Uranus, as viewed in this composite image,
 by the Keck II Telescope at near infrared wavelengths. These new
images of the seventh planet from the sun promise to help scientists
unravel the mysteries of the weather on Uranus. Credit: courtesy
Lawrence Sromovsky, UW-Madison Space Science and Engineering Center


BIG PICCY HERE http://www.news.wisc.edu/newsphotos/images/uranus_comp4Adcc04.jpg

A pair of images unveiled here  at a meeting of the Division for Planetary Sciences of the American Astronomical Society, reveal more cloud features - an abundance of atmospheric phenomena that vary dramatically in size, brightness and longevity - than have been observed before on Uranus.

"The cloud features range from small to large, from dim and diffuse to sharp and bright, from rapidly-evolving systems to stable features that last for years," says Lawrence Sromovsky, a senior scientist at the University of Wisconsin-Madison's Space Science and Engineering Center.

What's more, the new Keck images captured several Uranian weather oddities, including a big southern hemisphere storm feature that, during the course of several years, seesaws over 5 degrees of latitude.

"It's weird behavior that hasn't been recognized before on Uranus. It's similar to what's been seen on Neptune, although there the oscillation is much more rapid," Sromovsky explains. "It is not surprising to see cloud features drifting in latitude, but our models don't show these oscillations. We don't know what makes it keep coming back to its starting point."

Another unusual Uranian weather feature is a long, narrow complex of cloud features that is probably the largest group of atmospheric features ever seen on the planet. Spotted in the northern hemisphere of Uranus, the 18,000-mile-long complex of clouds dissipated completely during the span of a month.

SOURCE: SPACEFLIGHTNOW.COM


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Mars rover Opportunity looking for crater exit
MISSION CONTROL STATUS REPORT


Operators of NASA's Mars Exploration Rover Opportunity have determined that a proposed route eastward out of "Endurance Crater" is not passable, so the rover will backtrack to leave the crater by a southward route, perhaps by retracing its entry path.


Opportunity captured this view from the base of "Burns Cliff" during the
 rover's 280th martian day (Nov. 6). This cliff in the inner wall of "Endurance Crater"
 displays multiple layers of bedrock for the rover to examine with its panoramic camera
and miniature thermal emission spectrometer. The rover team has decided that
the farthest Opportunity can safely advance along the base of the cliff is
close to the squarish white rock near the center of this image. Credit: NASA/JPL


BIGGY PICCY http://www.jpl.nasa.gov/images/mer/2004-11-11/opportunity_sol_280-med.jpg

Before turning around, Opportunity will spend a few days examining the rock layers in scarp about 10 meters (33 feet) high, dubbed "Burns Cliff." From its location at the western foot of the cliff, the rover will use its panoramic camera and miniature thermal emission spectrometer to collect information from which scientists hope to determine whether some of the layers were deposited by wind, rather than by water. The rover will not reach an area about 15 meters (50 feet) farther east where two layers at different angles meet at the base of the cliff.
Opportunity entered the stadium-size crater on June 8 at a site called "Karatepe" along the crater's southern rim. Inside the crater, it has found and examined multiple layers of rocks that show evidence of a wet environment in the area's distant past.

Opportunity and its twin, Spirit, successfully completed their primary three-month missions on Mars in April. NASA has extended their missions twice, most recently on Oct. 1, because the rovers have remained in good condition to continue exploring Mars longer than anticipated.

SOURCE: SPACEFLIGHTNOW.COM


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Martian moon Phobos in color for close-up look

EUROPEAN SPACE AGENCY NEWS RELEASE

These images, taken by the High Resolution Stereo Camera (HRSC) on board ESA's Mars Express spacecraft, are Europe's highest-resolution pictures so far of the Martian moon Phobos


Bigger Piccy..(but not that bigger if you have a dial up it should be ok) http://esamultimedia.esa.int/images/marsexpress/115-051004-0756-6-co-02-Phobos_hires.jpg

These HRSC images show new detail that will keep planetary scientists busy for years, working to unravel the mysteries of this moon. The images show the Mars-facing side of the moon, taken from a distance of less than 200 kilometres with a resolution of about seven metres per pixel during orbit 756.
The Mars Express spacecraft periodically passes near Phobos about one hour before it flies at an altitude of only 270 kilometres above the Martian surface, just above the atmosphere. Within minutes, the orbiting spacecraft turns from its attitude where it points at Mars to train its camera on this little world.

SOURCE: SPACEFLIGHTNOW.COM

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Superfast Nasa jet pushes Mach 10


  A US hypersonic experimental scramjet clocked up a test flight at 10 times the speed of sound, sealing a second world speed record, NASA said.

The unmanned NASA jet was launched over the Pacific Ocean yesterday in a bid to demonstrate a radical new engine technology by flying at a world-record 7000mph (11,263 km/h) almost 10 times the speed of sound.

The pilotless scramjet screeched across the Pacific Ocean with NASA scientists nervously monitoring its second test flight.

It was the second record to be claimed in eight months.



PICTURE: BBC
TEXT: GOOGLE SCIENCE NEWS

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Spacecraft launched to observe cataclysmic blasts

CAPE CANAVERAL, Fla. - NASA launched a $250 million quick-response satellite today to study enigmatic gamma ray flashes from brief-but-titanic deep space explosions that may be the "death cries" of massive stars imploding to form black holes.



The Swift satellite's 126-foot-tall Boeing Delta 2 rocket roared to life at 12:16 p.m. and quickly thundered away through a mostly clear sky. Arcing east over the Atlantic Ocean, the slender rocket put on a spectacular sky show for area residents and tourists as it climbed away toward space.

It will take engineers about a month to check out and calibrate the satellite's three gamma ray, X-ray and optical telescopes before scientific observations can begin. If all goes well, Swift will detect at least 200 gamma ray bursts during its two-year primary mission.

SOURCE: SPACEFLIGHTNOW.COM

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Weird Blobby Thing Found Inside My Mind

Reports are coming in of a weird blobby thing found inside my head just now. The phenomenah materialised whilst taking deep breaths and in a fit of spontaneity found itself created.


BLOB, Created just now, enjoying existence.

I remain mystified as all attempts at contact with 'Blob' have failed. Understandably men in white coats are attempting to enter my house armed with what looks like, Mace, Tranquilizers and a Straight Jacket and what appears to be Enema equipment !!

NEWSFLASH:...report just in, the men in white coats have entered the house and are attempting entrance into my study.

LATEST: Blob has not attempted to assist me, as the men have now managed to infiltrate their way in and........................oomph....struggle....!!!!


SOURCE: Butterscotch Praline and Toffy.





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« Last Edit: 23/11/2004 01:22:35 by neilep »
 

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Science taps into ocean secrets

Some 13,000 new marine species have been discovered in the past year, according to information released by an international alliance of scientists.

The Census of Marine Life (COML) has also uncovered previously unknown migration routes used by fish such as tuna and shark.

The $1bn 10-year project, which is building a huge database, involves researchers in more than 70 countries.

The new knowledge will inform future conservation and fisheries policies.

   
In some of the results we've had you can see a kind of doughnut of circulation which seems to concentrate life in deep water

Dr Fred Grassle of Rutgers University says

"We know something about the first 100m at this point but we know almost nothing about what lies down in the deep.

"Our analysis shows that if you catch a fish below 2,000m it is 50 times more likely to be new to science," he told the BBC News website.

 

This goby fish from Guam lives in tandem with a shrimp; the shrimp digs a burrow and the fish acts as sentinel.


About 90% of the ocean biomass is microbia


More than 80,000 specimens were collected during an expedition to the mid-Atlantic ridge


Some bizarre creatures lurk in the very deep


The census is shedding more light on zooplankton



Surely the most bizarre of them all. The  Jet Powered Hairybumakisfishafartimus !!


SOURCE: BBC I

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We're going fishing on the weekend. I wanna catch a Jet Powered Hairybumakisfishafartimus.
 

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Hee hee....good luck Robert.....don't know if it'll make good eating though !!...and I'd be careful how you cook it..it may explode !!

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« Last Edit: 24/11/2004 22:44:38 by neilep »
 

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A Titan of a Mission

Parachuting through smog to Saturn's moon


On Jan. 14, a flying saucer will parachute through the thick orange haze of a distant moon's atmosphere. Descending through the hydrocarbon smog, the probe could crash into an icy mountain, plop in a pool of organic goo, or dive into a methane ocean. Welcome to Saturn's largest moon, Titan, a place where organic chemistry appears to be a carbon copy of the infant Earth's just before life got a foothold. The saucer-shaped Huygens probe, named for the 17th-century Dutch astronomer who discovered Titan, has been riding piggyback on the Cassini spacecraft since it left Earth in October 1997. The craft arrived at Saturn on June 30 and has now embarked on a 4-year tour of the planet and its moons.

Radar data from Cassini, taken during its first close flyby of Titan on Oct. 26, reveal dark patches that might be lakes of methane. Streaks imaged by visible-light cameras during that flyby could be caused by the flow of a hydrocarbon fluid or by wind eroding solid material


BAM, SPLAT, PLOP. When the
 Huygens probe plunges through
 Titan's atmosphere, it may land
 (top to bottom) on an icy surface,
in an organic goo, or on a sea of
 hydrocarbons.
J. Garry/Fastlight Illustration

SOURCE:ScienceNews.org

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Precocious black holes challenge theories

CHANDRA X-RAY CENTER NEWS RELEASE

NASA's Chandra X-ray Observatory has obtained definitive evidence that a distant quasar formed less than a billion years after the Big Bang contains a fully-grown supermassive black hole generating energy at the rate of twenty trillion Suns. The existence of such massive black holes at this early epoch of the Universe challenges theories of the formation of galaxies and supermassive black holes.


The X-rays observed by Chandra (inset) from the quasar SDSSp
J1306 (or J1306) have taken 12.7 billion light years to reach Earth,
 only a billion years less than the estimated 13.7-billion-year age of
 the Universe. Surprisingly, in this quasar, which is seen as it was
at an early epoch, the distribution of X-rays with energy - the X-ray
 spectrum - is indistinguishable from that of nearby, older quasars.
 The smaller object in the upper left of the image is a foreground
galaxy. Credit: NASA/CXC/D.Schwartz & S.Virani; Illustration:
CXC/M.Weiss



Astronomers Daniel Schwartz and Shanil Virani of the Harvard-Smithsonian Center for Astrophysics in Cambridge, MA observed the quasar, known as SDSSp J1306, which is 12.7 billion light years away. Since the Universe is estimated to be 13.7 billion years old, we see the quasar as it was a billion years after the Big Bang. They found that the distribution of X-rays with energy, or X-ray spectrum, is indistinguishable from that of nearby, older quasars. Likewise, the relative brightness at optical and X-ray wavelengths of SDSSp J1306 was similar to that of the nearby group of quasars. Optical observations suggest that the mass of the black hole is about a billion solar masses.

BIGGER PICCY HERE (200k) http://chandra.harvard.edu/photo/2004/j1306/j1306_xray_ill.jpg

SOURCE: SPACEFLIGHTNOW.COM


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