In Brief: Study backs Einstein notion on expanding universe

November 24, 2010 By MALCOLM RITTER , AP Science Writer

Scientists have found new evidence that an idea Albert Einstein regretted ever having may be key to solving a big mystery: why the universe is expanding at an ever-faster clip.

That idea is the cosmological constant, sort of a repelling influence in empty space. Einstein inserted it in his in 1917. He later called it the biggest blunder of his life. But today, many scientists believe it explains the ever-faster expansion of the universe.

In Thursday's issue of the journal Nature, French researchers report analyzing observations of pairs of distant galaxies. Their results fit with the idea that the is driving the expansion. But cosmologist Michael Turner of the University of Chicago said still more work is needed to confirm that idea.

Explore further: Dark Energy Measurement Sheds New Light on Universe's Expansion

More information: Christian Marinoni & Adeline Buzzi (2010) A geometric measure of dark energy with pairs of galaxies, Nature 468, 539-541 (25 November 2010) doi:10.1038/nature09577

1 shares

Related Stories

Revised theory of gravity doesn't predict a Big Bang

July 12, 2010

(PhysOrg.com) -- The Big Bang theory has formed the basis of our understanding of the universe's origins since it was first proposed in 1927 by Georges Lemaitre. And for good reason: the theory is supported by scientists' ...

Recommended for you

Rapid and continuous 3-D printing with light

January 22, 2019

Three-dimensional (3-D) printing, also known as additive manufacturing (AM), can transform a material layer by layer to build an object of interest. 3-D printing is not a new concept, since stereolithography printers have ...

Scientists discover new quantum spin liquid

January 22, 2019

An international research team led by the University of Liverpool and McMaster University has made a significant breakthrough in the search for new states of matter.

Researchers capture an image of negative capacitance in action

January 21, 2019

For the first time ever, an international team of researchers imaged the microscopic state of negative capacitance. This novel result provides researchers with fundamental, atomistic insight into the physics of negative capacitance, ...

Toward ultrafast spintronics

January 21, 2019

Electronics have advanced through continuous improvements in microprocessor technology since the 1960s. However, this process of refinement is projected to stall in the near future due to constraints imposed by the laws of ...

1 comment

Adjust slider to filter visible comments by rank

Display comments: newest first

KwasniczJ
2.3 / 5 (3) Nov 24, 2010
.their results fit with the idea that the cosmological constant is driving the expansion...
I didn't get the high-level logic of this article. The cosmological constant was determined by thorough red shift analysis of thousands of galaxies. A) The single pair of galaxies proves anything in this connection. B) The numerical value of cosmological constant is actually computed from accelerated expansion of galaxies - so it will always agree with it in the same way, like the mass of dark matter will always fit the general relativity, because it's derived from gravitational lensing.

http://www.physor...655.html

In another words, I'm smelling the circular reasoning again...

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.