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Rated • 1 review • physics, cosmology • deccanherald.com
The cosmic afterglow left behind by Big Bang is called the cosmic microwave background radiation.
Researchers from the school of physics and astronomy at Cardiff University at Wales in the UK and Kavli Institute for Particle Astrophysics and Cosmology at Stanford in USA used QUaD to study the afterglow.
QUaD is an extragalactic surveyor located at the South Pole in Antarctica. This team has further strengthened the belief that dark matter does make up 95 per cent of everything in existence. Detailed maps of the cosmic microwave background were released in the November 1 issue of The Astrophysical Journal.
The team has been able to investigate not just where the dark matter existed but also how it was moving and thus how the universe looked shortly after cosmic bodies came into existence following the Big Bang.
The instruments used are highly sensitive and the observations though difficult to interpret very closely match the results hypothetically predicted by the existence of dark matter.
However these are findings of the universe 400,000 years after it was formed and so understanding what happened in that crucial moment of the Big Bang needs patience and more research.
Dark matter stretches throughout space where it attracts ordinary matter that coalesces into galaxies of billions of stars and planets. It forms a kind of cosmic skeleton that gives the universe its structure. Scientists believe they will find a family of invisible dark matter particles, each of which plays a different role. Some may explain why time always goes in the same direction.
Researchers from the school of physics and astronomy at Cardiff University at Wales in the UK and Kavli Institute for Particle Astrophysics and Cosmology at Stanford in USA used QUaD to study the afterglow.
QUaD is an extragalactic surveyor located at the South Pole in Antarctica. This team has further strengthened the belief that dark matter does make up 95 per cent of everything in existence. Detailed maps of the cosmic microwave background were released in the November 1 issue of The Astrophysical Journal.
The team has been able to investigate not just where the dark matter existed but also how it was moving and thus how the universe looked shortly after cosmic bodies came into existence following the Big Bang.
The instruments used are highly sensitive and the observations though difficult to interpret very closely match the results hypothetically predicted by the existence of dark matter.
However these are findings of the universe 400,000 years after it was formed and so understanding what happened in that crucial moment of the Big Bang needs patience and more research.
Dark matter stretches throughout space where it attracts ordinary matter that coalesces into galaxies of billions of stars and planets. It forms a kind of cosmic skeleton that gives the universe its structure. Scientists believe they will find a family of invisible dark matter particles, each of which plays a different role. Some may explain why time always goes in the same direction.
