The apparent absence of shadows where shadows were expected to be is raising new questions about the faint glow of microwave radiation once hailed as proof that the universe was created by a "Big Bang."
Posted on 09/01/2006 8:10:03 AM PDT by PatrickHenry
The apparent absence of shadows where shadows were expected to be is raising new questions about the faint glow of microwave radiation once hailed as proof that the universe was created by a "Big Bang."
In a finding sure to cause controversy, scientists at UAH found a lack of evidence of shadows from "nearby" clusters of galaxies using new, highly accurate measurements of the cosmic microwave background.
A team of UAH scientists led by Dr. Richard Lieu, a professor of physics, used data from NASA's Wilkinson Microwave Anisotropy Probe (WMAP) to scan the cosmic microwave background for shadows caused by 31 clusters of galaxies.
"Among the 31 clusters that we studied, some show a shadow effect and others do not," said Lieu. If the standard Big Bang theory of the universe is accurate and the background microwave radiation came to Earth from the furthest edges of the universe, then massive X-ray emitting clusters of galaxies nearest our own Milky Way galaxy should all cast shadows on the microwave background.
These findings are scheduled to be published in the Sept. 1, 2006, edition of the Astrophysical Journal.
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Another story about this is here.
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I dunno either. Something is askew with the picture.
Dah Shadow Do!
It makes no sense that there would be shadows to me. The radiation is coming from all directions.
Thanks for the ping. Will be interesting to see the discussions.
Title is a mistake.
LACK of evidence doesn't prove anything, other than the current lack of evidence.
It'd be like me saying, I woke up this morning and the ground was dry, so that must prove that it doesn't rain around here.
Absence of evidence is not evidence of absence........
Everywhere is the center of expansion.
They're all on DVD now......
As with any cutting edge research, sounds like more info is needed...
As the 2nd article states, could be a failure to account for radiation emitted by the galactic cluster, or that we simply don't understand exactly what's going on near the event horizon.
Me And My Shadow
Writer(s): Dave Dreyer - Al Jolson - Billy Rose
(This is the duet with Sammy Davis, Jr.)
Like the wallpaper sticks to the wall
Like the seashore clings to the sea
Like you'll never get rid of your shadow
Frank, you'll never get rid of me
Let all the others fight and fuss
Whatever happens, we've got us.
Me and my shadow
We're closer than pages that stick in a book
We're closer than ripples that play in a brook
Strolling down the avenue
Wherever you find him, you'll find me, just look
Closer than a miser or the bloodhound's to Liza
Me and my shadow
We're closer than smog when it clings to L.A.
We're closer than Bobby is to J.F.K.
Not a soul can bust this team in two
We stick together like glue
And when it's sleeping time
That's when we rise
We start to swing
Swing to the skies
Our clocks don't chime
What a surprise
They ring-a-ding-ding!
Happy New Year!
Me and my shadow
And now to repeat what I said at the start
They'll need a large crowbar to break us apart
We're alone but far from blue
Before we get finished, we'll make the town roar
We'll make all the late spots, and then a few more
We'll wind up at Jilly's right after Toot's Shore
Life is gonna be we-wow-whee!
(Here comes the party!)
For my shadow and me!
Say Frank?
What is it, Sam?
Do me a favor?
What do you want, now?
Would you mind taking it, just one more time?
From the top?
No! From the ending!
Wonderful!
And while we are swinging, to mention a few
We'll drop in at Danny's, The Little Club too
But wind up at Jilly's, whatever we do
Life is gonna be we-wow-whee!
(Wow!)
For my shadow and me!
Frank?
Oh, forget it Sam.
How deep can they see now? A couple hundred thousand years from the discontinuity? No doubt they will find surprises every time they see a little deeper.
Maybe they all fell into the Black holes when they tripped over the Dark Matter......
Does Dark Matter cast a shadow?........
The fact that some galaxies have shadows and some don't doesn't go to contention that the microwave radiation is proof of the Big Bang. The radiation is there.
What we apparently are lacking is an understanding as to why some galaxies don't shield it.
Dark matter doesn't do much at all. It has gravity, but it neither emits nor absorbs nor reflects light. Nor does it interact with ordinary matter except by gravity.
Back in Columbus days they thought if you sailed to far you would fall off the edge of the earth. I just wonder what todays great minds say about what happens if you travel to the edge of the universe.
By the way does anyone know what existed before the big bang? There had to be something to blowup because nothing is the most stable environment that can exists so there had to be something.
Well that's why I'm not a science type dude.
It's like a story from James Taranto's "Bottom stories of the day" or whatever he calls it: "Scientists do not find shadows."
All it means is that there are things here going on that they don't understand...more puzzles to puzzle out....
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