01-08-2009, 02:30 AM
Mystery Roar from Faraway Space Detected
we are all light made solid.
mystery roar from faraway space detected
by andrea thompson
posted: 07 january 2009
04:43 pm et
long beach, calif. -- space is typically thought of as a very quiet place. but one team of astronomers has found a strange cosmic noise that booms six times louder than expected.
the roar is from the distant cosmos. nobody knows what causes it.
of course, sound waves can't travel in a vacuum (which is what most of space is), or at least they can't very efficiently. but radio waves can.
radio waves are not sound waves, but they are still electromagnetic waves, situated on the low-frequency end of the light spectrum.
many objects in the universe, including stars and quasars, emit radio waves. even our home galaxy, the milky way, emits a static hiss (first detected in 1931 by physicist karl jansky). other galaxies also send out a background radio hiss.
but the newly detected signal, described here today at the 213th meeting of the american astronomical society, is far louder than astronomers expected.
01-08-2009, 11:12 AM
Cassiopeia A Animations/Black Hole
this is way cool...
when you look at a photo of a galaxy or nebula, do you wonder what it would look like in 3-d? astrophotos show objects in just two dimensions on the plane of the sky, but everything out there has depth. on tuesday, astronomers presented new 3-d animations that blew my mind. the technique, developed from medical imaging technology, will open new doors to scientific discovery.
we are all light made solid.
01-23-2009, 11:25 AM
Dark flow: Proof of another universe?
be well, be love.
dark flow: proof of another universe?
23 january 2009 by amanda gefter
for most of us the universe is unimaginably vast. but not for cosmologists. they feel decidedly hemmed in. no matter how big they build their telescopes, they can only see so far before hitting a wall. approximately 45 billion light years away lies the cosmic horizon, the ultimate barrier because light beyond it not has not had time to reach us.
so here we are, stuck inside our patch of universe, wondering what lies beyond and resigned to that fact we may never know. the best we can hope for, through some combination of luck and vigilance, is to spot a crack in the structure of things, a possible window to that hidden place beyond the edge of the universe. now sasha kashlinsky believes he has stumbled upon such a window.
kashlinsky, a senior staff scientist at nasa's goddard space flight center in greenbelt, maryland, has been studying how rebellious clusters of galaxies move against the backdrop of expanding space. he and colleagues have clocked galaxy clusters racing at up to 1000 kilometres per second - far faster than our best understanding of cosmology allows. stranger still, every cluster seems to be rushing toward a small patch of sky between the constellations of centaurus and vela.
02-05-2009, 02:24 PM
just fascinating and at the same time, inspiring surprising a bit
nice pictures too
03-03-2009, 10:01 AM
Geometry creates complex spinning galaxies
be well, be love.
geometry creates complex spinning galaxies
tuesday, 3 march 2009
by heather catchpole
sydney: polar ring galaxies are strange galaxies in which an outer ring of gas and stars rotates over the poles, making them appear from a distance like spinning tops. but just how they grow has long puzzled astronomers.
now, u.s. and canadian astronomers say the oddly-shaped galaxies grow like normal galaxies, but suck in gas and dust spinning in a plane at an angle to the galactic disk. see a video of the formation of a polar ring galaxy, created by the astronomers, here.
03-06-2009, 06:11 AM
i have problem to visualize matter universe and anti matter universe.
what is the connexion between them, how all this work?
if somebody can give me more light about this.
03-06-2009, 09:59 AM
A bizarre universe may be lurking in the shadows
be well, be love.
a bizarre universe may be lurking in the shadows
* 04 march 2009 by anil ananthaswamy
it is 3.30am on 26 december 2007 in mcmurdo, antarctica. the crew at the long-duration balloon facility have stayed up all night in sub-zero temperatures, waiting for the winds to subside. finally, the gigantic balloon lifts off. filled with about a million cubic metres of helium, it soars high into the stratosphere carrying an experiment called atic.
for 19 days, atic circled the south pole, studying cosmic rays coming from space. then, nearly a year later, the atic team made a stunning announcement: they found that more high-energy electrons had left their mark on the experiment than expected. that might not sound like much, but the result is remarkable because it might be a telltale sign of dark matter, the invisible stuff thought to make up about 85 per cent of matter in the universe.
and it's not the only one. just months before, an italian-led collaboration reported that their satellite-based experiment, called pamela, had seen a similar excess of electrons, along with an excess of positrons. add to this earlier results from gamma-ray satellites and experiments searching for dark matter here on earth, and suddenly we have an abundance of new clues about dark matter. "it is a very exciting time to be doing dark-matter physics," says dan hooper, a physicist at the fermi national laboratory in batavia, illinois.
the bonanza of evidence suggests that dark matter might be far more complicated than we had ever imagined. for starters, the theoretician's favourite dark-matter candidate is falling out of favour, with the latest experiments making the case for new, exotic varieties of dark matter. if they are right, we could be living next to a "hidden sector", an unseen aspect of the cosmos that exists all around us and includes a new force of nature.
03-07-2009, 11:18 AM
Symbols of an Alien Sky, Part 4
be well, be love.
this is the fourth 10-minute segment of the three-hour video presentation in development, "symbols of an alien sky" - a reconstruction of the celestial dramas that inspired the myth-making epoch of human history.
this segment introduces the electric universe, and begins to explain how the two separate theories of david talbott and wal thornhill were merged into a compelling foundation for further study.
03-08-2009, 04:30 AM
i cannot manage to get the adresses to the videos, they change all the time for the same one...
anyway, the video where it's stated that saturn was a the center /axis/pole is called "when saturn ruled the universe"....or was it world?? you'll find to the right of the video posted by lighteye if you first watch the 3:rd part of symbols of an alien sky.
these to concepts just don't fit together. and all the same it's the same guy who presents them...or i just don't understand english well enough...
anyway, the ancient greeks interpreted venus as a godess of war as morningstar and a godess of love as an eveningstar. the mayans planned their wars after the venuscycle and discovered that btw the venuspassages that occur with some hundred years apart and of one we are in the middle of at the present moment (the first occured june 8, 2004 andthe other will be on june 6 2012) they noticed great upheaval in society due to misuse of power among the elita and ruling classes.
so venus has had the double symbolism as the princess and dark witch while todya we only think of her as love and fruitfulness. but the supressed rage of femininity will have it's tribute it seems...
03-09-2009, 09:29 AM
researchers led by michihiro amenomori of hirosaki university in japan plotted the direction of 37 billion cosmic rays and found a slight excess of 1 part in 1000 coming from a patch of sky roughly centred on the constellation cygnus.
this suggests there is a source of cosmic rays inside our own galaxy coming from that direction, says team member yi zhang of the institute of high energy physics in beijing, china.
the excess is in the same part of the sky that exhibits an unexplained excess of high-energy photons called gamma rays in observations by the milagro gamma ray detector in los alamos, new mexico, us, and other instruments.
both types of observation might be caused by one or more cosmic ray sources in the cygnus region, zhang says. "it would mean that those sources should not be too far from us, and this would provide us a good laboratory to study the cosmic ray acceleration," he told new scientist...
nasa's kepler mission to seek other earths
the mission will spend three-and-a-half years surveying more than 100,000 sun-like stars in the cygnus-lyra region of our milky way galaxy. it is expected to find hundreds of planets the size of earth and larger at various distances from their stars. if earth-size planets are common in the habitable zone, kepler could find dozens; if those planets are rare, kepler might find none.
some strange link ?
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