Tag Archives | Space Theory

‘Multiverse’ Theory Suggested By Microwave Background

Bubbles_3D“It would be a pretty amazing thing to show that we have actually made physical contact in another universe. It’s a long shot, but it would by very profound for physics” (Prof. Efstathiou). Via BBC:

The idea that other universes – as well as our own – lie within “bubbles” of space and time has received a boost.

Studies of the low-temperature glow left from the Big Bang suggest that several of these “bubble universes” may have left marks on our own.

This “multiverse” idea is popular in modern physics, but experimental tests have been hard to come by.

The preliminary work, to be published in Physical Review D, will be firmed up using data from the Planck telescope.

For now, the team has worked with seven years’ worth of data from the Wilkinson Microwave Anisotropy Probe, which measures in minute detail the cosmic microwave background (CMB) – the faint glow left from our Universe’s formation.

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Scientists Say They Can Now Test Theory Of Early Universe Being One Dimension

511px-Triangulum.nebula.arp.750pix

Site where stars are being born in Emission nebula NGC 604 2.7 million light years from Earth.

A relatively new theory suggests that the early stages of the universe may have been only one dimension and gradually gained more dimensions as it expanded. Does this mean the universe may eventually see a fourth dimension? Via Daily Mail:

Did the early universe have just one spatial dimension? That’s the mind-boggling question at the heart of a theory scientists say they are on the brink of solving.

The theory was first proposed by physicist Dejan Stojkovic and colleagues from the University of Buffalo in 2010.

They suggested that the early universe – which exploded from a single point and was tiny at first – was one-dimensional (like a straight line) before expanding to include two dimensions (like a plane) and then three, which is the world in which we live today.

The theory, if valid, would address important conundrums facing particle physicists.

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