Fresh articles

» IOS6 news and fixes
» Strange Martian crater
» 100 Petabits per second
» Artificial life created
» Space rock contains organic molecular feast
» 10 Failed Doomsday Predictions
» Universal phone charger
» Moon buildings
» Epassports RFID danger
» 500Gb optical

 
 

 
 

 Index

Sexy things-> Sexy things (4)
Bulk-> Bulk (15)
Technology-> Technology (42)
Space-> Space (35)
UFO-> UFO (5)
Funny-> Funny (4)
Earth Life-> Earth Life (9)
Internet-> Internet (10)
Health-> Health (1)

 
 

 
 

 Most popular

»X-ray
» Google unifies search results
»Google under water
»Moon buildings
»500Gb optical
»Scientists Levitate Small Animals
»Jet stream is weakening
»Orion new nasa vehicle
»Saturns moon like ocean floor
»How Cells Store Fat

 
 

 
 

 Other articles

»What the Internet really looks like
»500Gb optical
»Mercury detailed images
»U.S. Population Passes 300 Million
»Computer virus in space
»Ancient Greek Macine
»10 Failed Doomsday Predictions
»New Arctic Inhabitants: Trees
»Youtube still growing
»More Oxygen Could Make Giant Bugs on Earth
»New Wiki
»Jupiter stripes changes
»New Material Heals Itself
»Samsung Unveils Mobile TV Chipset
»Universal phone charger
»WTC UFO
»Why Music Gives Us the Chills
»Viruses on food
»UFO Wormhole footage
»Astrological Sign May be Wrong

 
 


Instead of being perfectly round like a globe, the universe might be a bit stretched in shape like a pill.

The newly proposed shape could be caused by a magnetic field that pervades the entire cosmos or defects in the fabric of space and time, researchers said.

Scientists in Italy base their proposal off data gathered by a NASA satellite known as the Wilkinson Microwave Anisotropy Probe (WMAP). This spacecraft is designed to scan the sky and measure the temperature of the heat left over from the Big Bang and now present throughout the universe in the form of microwaves.


 

So far data from this probe has helped nail down some of the most important details about the universe.

This includes the age of the universe since the Big Bang, at 13.7 billion years; the time when the first atoms formed, at 380,000 years after the Big Bang; and how much of the universe is made of either ordinary matter or the mysteries known as dark matter and dark energy, at roughly 5, 25 and 70 percent, respectively.


The quadrupole anomaly

The satellite also revealed an oddity concerning the way in which portions of the sky contribute to the overall map of cosmic microwaves. When it comes to the largest samples of the sky, the level of microwave radiation seems to be under-represented. On the other hand, smaller samples seem to be contributing radiation at expected levels.

Now astrophysicist Leonardo Campanelli of the University of Ferrara and his colleagues Paolo Cea and Luigi Tedesco at the University of Bari, all in Italy, have found that a universe shaped a bit like an oval can explain this so-called "quadrupole anomaly."

If the universe did not expand as a sphere after atoms first formed but instead as a slightly more elongated shape known as an ellipsoid, that would explain the odd cosmic microwave intensities seen at the largest scales, the researchers suggest.

Some parts of a nonspherical universe would be farther away than others, and thus appear slightly fainter, a minute difference mostly imperceptible when only looking at tiny slices of the sky.

According to Campanelli and his colleagues, the universe may be roughly 1 percent more eccentric, or nonspherical, than previously often believed.

An ellipsoid universe could be caused by a magnetic field pervading the cosmos that stretches space-time, he said, or by space-time defects such as cosmic strings, immensely dense structures just a proton or so wide stretched to intergalactic scales, whose gravity could distort space and time.


Bigger headache

While NASA astrophysicist Gary Hinshaw at Goddard Space Flight Center in Greenbelt, Md., felt it "fair to say that the data weakly favor the ellipsoidal model," he told SPACE.com that invoking an ellipsoid shape for the universe to solve the quadrupole anomaly created a bigger headache involving why the universe might be ellipsoid to begin with.

"It is actually difficult to understand how an ellipsoidal model would arise 'naturally' in cosmology, so the burden switches from explaining a very mild 'anomaly' to explaining a fundamentally new feature of our universe," Hinshaw said.

The scientists reported their findings in the September 29 issue of the journal Physical Review Letters. Future space missions that better see how cosmic microwaves are polarized could test the ellipsoidal model.

By Charles Q. Choi
 Read this article Email this article

Article © News, Technology, Space, Science - Breaking News and interesting storiesShare


 
 
 
 

You need to login first



Satellite Shooted down

 
  Did you know?...

- Women in ancient Egypt prevented pregnancy with
plugs made of crocodile droppings?

- Based on artifacts and cave paintings, Ice Age women were likely to enjoy sex as much as their male mates?

- In 2005, the average first time for US girls occurred at the age of 17?

- Known aphrodisiacs of the food world include chocolate, oysters and spicy foods?

- That females have a weaker sex drive than men is a  cultural misconception?

- The most common sexual problem among men is premature ejaculation?

- It is a common misconception that pregnancy can’t occur without male orgasm?

- Whether put to use or not, males produce about 300 million sperm every day?
 
 

 
 

 Visit:

CNN Page

NASA Page

BBC UK

Google News

World of Warcraft News

Romanian Web Hosting

Romanian Domain Registrar

.BIZ Domain Registrar

Advertising

Funny Things

Golden Sands Bulgary

Web Hosting News

Web Hosting Romania

Gadgets Resources

Top Video Games Online
 
 




Members

Username
Password:

[New account] [Forgoten password]


 
 

Keyword:

 
 

©12-Dec-2017