Articles about dark energy

We're not saying we're living in a simulation but someone's simulated the universe in a computer

A team of researchers has created the largest virtual model of our universe, complete with billions of galaxies, to probe the effects of dark energy and dark matter. The ambitious project took about three years to complete. A group of astrophysicists from the University of Zurich (UZH) developed their code, PKDGRAV3, to …
Katyanna Quach, 10 Jun 2017

Quantum traffic jam of atoms could unlock origin of dark energy, physicists claim

It may be possible to crack the mystery of why the universe is expanding at an accelerated rate, if gravity can be measured through a “quantum traffic jam” of ultracold atoms. A paper published in Physical Review Letters [paywalled] proposes a hypothetical experiment that could provide scientists with a new way of measuring …
Katyanna Quach, 15 Nov 2016
BOSS map of universe

Go catch Pokemon in this, nerds: Our space neighborhood of 1.2m galaxies mapped in 3D

Pics After ten years of work by hundreds of scientists, the Sloan Digital Sky Survey III has produced the most complete map of our nearby universe covering over a million galaxies. "We have spent five years collecting measurements of 1.2 million galaxies over one quarter of the sky to map out the structure of the Universe over a …
Iain Thomson, 15 Jul 2016
Kirk and Spock contemplate castles built in the air

Captain, dark energy sensor readings show dwarf galaxies orbiting the Milky Way

Astronomy teams at the University of Cambridge and America's Fermilab looking for evidence of dark matter have spotted eight (relatively) tiny galaxies orbiting our Milky Way. "DES is finding galaxies so faint that they would have been very difficult to recognize in previous surveys," said Keith Bechtol of the University of …
Iain Thomson, 18 Aug 2015
The supervoid

Something's missing in our universe: Boffins look into the SUPERVOID

The biggest structure in the Universe has astro-boffins a-twitter because there's less stuff in it than there should be. If you pop over to the Monthly Notices of the Royal Astronomical Society you'll find the snappily-titled Detection of a supervoid aligned with the cold spot of the cosmic microwave background, which explains …
Galaxy M101 shown with bars indicating location of supernova SN 2011fe. Image credit: NASA/Swift

PHYSICS APPLECART UPSET as dark energy disappears, Universe slams on brakes

In-the-dark astrophysicists now think there's probably less dark energy knocking about than was previously thought – which may suggest that the universe is expanding at a slower rate. That's at least the latest thinking on the subject to come out of the University of Arizona, whose team of astronomers claimed that their …
Kelly Fiveash, 11 Apr 2015

Six MEEELLION gigabytes-a-year space 'scope wins funding

The multi-billion pixel, multi-colour, all-sky-surveying Large Synoptic Survey Telescope is getting ready to go into its main construction phase, with America's National Science Foundation approving the build budget. The Association of Universities for Research in Astronomy (AURA) has announced the NSF funding here. Overall …
The Register breaking news

Hubble boffins: Incredibly old supernova could explain EVERYTHING

NASA's Hubble telescope has spotted the most distant massive star explosion of its kind ever, one which could help boffins understand the very fabric of the universe. Hubble view of supernova SN Wilson The telescope picked out Supernova UDS10Wil, also known as SN Wilson, in the night sky. The star apparently blew up over 10 …
The Register breaking news

NASA joins ESA dark stuff hunt

NASA has signed on for a European Space Agency project to send a telescope to the L2 earth-sun Lagrange point in 2020, to investigate dark matter and dark energy. L2 is a spot where the gravity of sun and Earth will keep the spacecraft in a stable orbit in Earth’s shadow behind the Earth (relative to the Sun). Once stationed …
The Register breaking news

Boffins create quantum gas with temperature BELOW absolute zero

Boffins at the Ludwig Maximilian University in Munich, Germany have literally turned the Kelvin scale on its head, having produced a quantum gas with a temperature below absolute zero. Ulrich Schneider and his colleagues created the subzero gas by arranging potassium atoms into a lattice using lasers and magnetic fields, then …

Einstein almost tagged dark energy in the early 1920s

It’s of historical interest only, at this point, but an analysis of an exchange between Albert Einstein and Erwin Schrödinger seems to show how close Einstein came to predicting the dark energy problem. In this paper, submitted to Arxiv and described at the Arxiv Blog here, Alex Harvey of City University, New York, examines a …
The Register breaking news

BOSS Bang boffins: DARK ENERGY spreading across the Universe

New data from looking at black holes has confirmed a theory that dark energy is accelerating the expansion of the universe. The findings come from a research team that goes by the name of BOSS (Baryon Oscillation Spectroscopic Survey). Scientists have used a technique of measuring the light emitted from quasars - dying …
Anna Leach, 13 Nov 2012
The Register breaking news

Monster camera preps for dark energy search

Fermilab’s Dark Energy Camera has captured its first images, as a test run for the Dark Energy Survey due to begin in December 2012. The TARDIS-sized, 62-CCD, 570 megapixel camera, mounted on the Victor M. Blanco telescope at the National Science Foundation’s Cerro Tololo Inter-American Observatory (CTIO) in Chile, can shoot …
The Register breaking news

Neutrino mass, dark energy measurements refined

The pattern of galactic clusters in the early Universe is helping to reveal the secrets of the neutrino. Not only that, but astronomers working on South Pole Telescope (SPT) data also hope to yield more information about the dark energy that’s driving the universe apart. The new results, announced by University of Chicago …
The Register breaking news

Hubble probes star death blast clue to universe riddle

Pic Astronomers have photographed the faint embers of a star explosion that happened 9 billion years ago. The pic, snapped by the Hubble Telescope and published this month, is particularly significant because it helps boffins measure the rate at which the universe is expanding. This gives them a handle on understanding the …
Anna Leach, 12 Jan 2012
The Register breaking news

Stargazers spot dark energy

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 …
The Register breaking news

Large Hadron Collider to fire up again next Thursday

Exclusive The Large Hadron Collider (LHC), most powerful particle-smasher ever assembled by the human race and possible portal to other dimensions, is to fire up its beams following the Xmas break in a week's time. Official spokesmen for international particle-punishing science alliance CERN have thus far remained cagey about the exact …
Lewis Page, 18 Feb 2010
The Register breaking news

Cosmic Vampire sheds light on dark energy

Astronomers have taken time-lapse images of a "Vampire Star" that is causing them to excitedly quiver about possible insights into the Universe's expansion. Using the imaginatively-named Very Large Telescope and "adaptive-optics techniques", scientists at the European Southern Observatory (ESO) were able to take images and …
Pratik Desai, 18 Nov 2009

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