Feeds

Stargazers spot dark energy

Still real, we think

Intelligent flash storage arrays

The distribution of galaxies and the time it takes for galactic clusters to form are behind a University of Queensland claim confirming the existence of dark energy.

Dark energy has been predicted as a defender of Einsteinian models of the universe, ever since the 1990s when astrophysicists identified the accelerating expansion of the universe.

Since the “inflationary universe” didn’t fit with Einstein’s predictions, either Einstein was wrong, or a new form of energy was required.

The great physicist had once recast his equations to include a similar idea, but wasn’t comfortable with the solution and later called it his “greatest blunder”.

The UQ researchers worked with 26 astronomers from 14 institutions in a project conducted at the Anglo-Australian Telescope. The “WiggleZ Dark Energy Survey” mapped the distribution of 200,000 galaxies.

This, according to Professor Michael Drinkwater from the QU School of Mathematics and Physics, is “the first individual galaxy survey to span such a long stretch of cosmic time”.

Generally, supernovae are used as the basis of galactic measurement. This survey instead mapped the distance between galactic clusters, since pairs of galaxies have a statistical preference for being separated by a distance of 490 million light years.

This measurement was used to confirm measurements made using supernova brightness.

The researchers worked with NASA’s Galaxy Evolution Explorer. Along with Professor Drinkwater, the WiggleZ survey was led by Swinburne University’s Dr Christ Blake, Professor Warwick Couch and Professor Karl Glazebrook. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
Renewable energy 'simply WON'T WORK': Top Google engineers
Windmills, solar, tidal - all a 'false hope', say Stanford PhDs
SEX BEAST SEALS may be egging each other on to ATTACK PENGUINS
Boffin: 'I think the behaviour is increasing in frequency'
Post-pub nosh neckfiller: The MIGHTY Scotch egg
Off to the boozer? This delicacy might help mitigate the effects
I'M SO SORRY, sobs Rosetta Brit boffin in 'sexist' sexy shirt storm
'He is just being himself' says proud mum of larger-than-life physicist
NASA launches new climate model at SC14
75 days of supercomputing later ...
The next big thing in medical science: POO TRANSPLANTS
Your brother's gonna die, kid, unless we can give him your, well ...
Britain's HUMAN DNA-strewing Moon mission rakes in £200k
3 days, and Kickstarter moves lander 37% nearer takeoff
prev story

Whitepapers

Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
5 critical considerations for enterprise cloud backup
Key considerations when evaluating cloud backup solutions to ensure adequate protection security and availability of enterprise data.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Protecting against web application threats using SSL
SSL encryption can protect server‐to‐server communications, client devices, cloud resources, and other endpoints in order to help prevent the risk of data loss and losing customer trust.