Subscribe free to our newsletters via your
. 24/7 Space News .




Subscribe free to our newsletters via your




















Could The Universe Be Tied Up With Cosmic String

Dr Hindmarsh said that better data is required before the existence of cosmic strings can be confirmed.
by Staff Writers
Brighton, UK (SPX) Jan 22, 2008
Cosmic strings are predicted by high energy physics theories, including superstring theory. This is based on the idea that particles are not just little points, but tiny vibrating bits of string Cosmic strings are predicted to have extraordinary amounts of mass - perhaps as much as the mass of the Sun - packed into each metre of a tube whose width is less a billion billionth of the size of an atom.

Lead researcher Dr Mark Hindmarsh, Reader in Physics at the University of Sussex, said: "This is an exciting result for physicists. Cosmic strings are relics of the very early Universe and signposts that would help construct a theory of all forces and particles."

His team took data from NASA's Wilkinson Microwave Anisotropy Probe (WMAP), which is a satellite currently mapping the intensity of cosmic microwaves from all directions, and carefully compared the predictions of what should be seen with and without strings.

Dr Hindmarsh said: "We cannot yet see these strings directly. They are many billion light years away. We can only look for indirect evidence of their existence through precision measurements of the cosmic microwave background, of cosmic rays, gravitational radiation, and looking for double images of distant quasars."

The four-person team are members of COSMOS, the UK's world-leading cosmology supercomputing consortium fronted by Stephen Hawking. Using a Silicon Graphics supercomputer they made predictions of how the strings would affect the Cosmic Microwave Background, relic radio waves from the Big Bang which fill the universe. It turned out that the best explanation for the pattern of this radiation was a theory which included strings.

Dr Hindmarsh said that better data is required before the existence of cosmic strings can be confirmed. He hopes this will be produced by the European Space Agency's Planck Satellite mission (due for launch this year).

Community
Email This Article
Comment On This Article

Related Links
University of Sussex
Understanding Time and Space



Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News


Hubble Finds Double Einstein Ring
Santa Barbara CA (SPX) Jan 14, 2008
NASA's Hubble Space Telescope has revealed a never-before-seen optical alignment in space: a pair of glowing rings, one nestled inside the other like a bull's-eye pattern. The double-ring pattern is caused by the complex bending of light from two distant galaxies strung directly behind a foreground massive galaxy, like three beads on a string.







  • Progress Spacecraft Will Sink In Pacific
  • Environmental Tectonics NASTAR Center Announces Launch Of New Air And Space Adventure Programs
  • NASA inspector general comes under fire
  • ATK To Design And Build Solar Arrays For NASA's Orion CEV

  • Ice Clouds Put Mars In The Shade
  • Scientists examine effects of wind on Mars
  • 2007 WD5 Mars Collision Effectively Ruled Out As Impact Odds Widen To 1 In 10000
  • Russia claims to be ahead in race to put man on Mars

  • Antrix Launches Israeli Satellite Using Commercial PSLV Rocket
  • Russia To Launch Two Telecom Satellites On Jan 28 And Feb 10
  • Boosting Capability: Santa Maria Station To Join ESTRACK
  • Thuraya-3 Satellite Successfully Launched To Orbit

  • SPACEHAB Subsidiary Wins NASA Orbiting Carbon Observatory Contract
  • Radical New Lab Fights Disease Using Satellites
  • SKorea decides to terminate satellite: space agency
  • Japanese satellite flops at map-making: official

  • Happy Second Birthday New Horizons
  • The PI's Perspective: Autumn 2007: Onward to the Kuiper Belt
  • Data For The Next Generations
  • Goddard Instrument Makes Cover Of Science

  • NASA And Gemini Probe Mysterious Distant Explosion
  • Unusual Older Stars Giving Birth To Second Wave Of Planets
  • Rutgers And Penn State Astronomy Teams Discover Ancestors Of Milky Way-Type Galaxies
  • The Violent Lives Of Galaxies: Caught In The Cosmic Dark Matter Web

  • Amateur Radio Operators Asked To Tune Into Lunar Radar Bounce
  • With Moon Dirt In Demand, Geoscientist's Business Is Booming
  • NASA Announces Study Human Lunar Lander Design As Students Line Up For Moonbuggy Races
  • NASA Quest To Find Water On The Moon Moves Closer To Launch

  • Integral Systems Awarded Contract For GPS Next Gen Control Segment
  • Mercedes-Benz Moves To Evaluation Stage Of Columbus' Product
  • GPS Devices And Systems Will Surpass 900 Million Unit Shipments By 2013
  • Comtech Telecommunications Receives Movement Tracking System Orders

  • The content herein, unless otherwise known to be public domain, are Copyright 1995-2007 - SpaceDaily.AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement