Articles about dark matter

Big Bang

'It's back to the drawing board...' Innocent axions found not guilty of dark matter crimes

Physicists have ruled out the existence of axions once considered possible dark matter candidates. Dark matter has scientists stumped. It is widely believed that about 27 per cent of the universe is dark matter: mysterious globs of undetectable stuff that nobody really understands. Astronomers can observe its effects, and …
Katyanna Quach, 16 Nov 2017
AAO's SAMI instrument

Astroboffins map 845 galaxies in glorious 3D, maybe dark matter too

A team led by Sydney University's Dr Caroline Foster has created three-dimensional images of 845 galaxies, claiming it is the biggest collection of of 3D galactic representations ever gathered. Created since 2013, when the Sydney Australian Astronomical Observatory Multi-object Integral Field Spectrograph (SAMI) saw first …

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

Particle boffins calculate new constraints for probability of finding dark matter

The hunt for axions – a potential dark matter candidate – at the CERN Axion Solar Telescope has been fruitless. But scientists refuse to give up as they set a new limit that calculates the probability of finding these elusive particles. Axion particles are suspected to emerge from stars. Sunlight is filtered through the CERN …
Katyanna Quach, 23 May 2017

Far out: Dark matter bridges millions of light-years long spotted between galaxies

Pic Astrophysicists have for the first time spotted filaments of dark matter forming bridges between galaxies tens of millions of light-years apart. Dark matter – the ghostly substance that is thought to make up about a quarter of our universe – is strangely hard to find. Some physicists believe dark matter is made up of weakly …
Katyanna Quach, 13 Apr 2017

Dark matter drought hits older galaxies: Boffins are, rightly, baffled

The mystery surrounding dark matter deepens: scientists have discovered that the puzzling substance was less dominant in our universe's early galaxies. Although no one knows what dark matter is made out of, physicists generally agree that it exists, and that it can be observed albeit indirectly. In the 1970s, astronomers …
Katyanna Quach, 15 Mar 2017
NASA Cold Atom Lab concept image

NASA's atom-chiller ready to fly to the ISS

Plenty of readers will agree that the International Space Station would be a cool place to work, and it's getting cooler: a billionth of a degree above 0K (in a very small spot). If all goes to plan, August's SpaceX CRS-12 supply mission to the ISS will carry NASA's long-planned Cold Atom Laboratory, an experiment to help …

Dark matter? More like diet matter: Super-light axions may solve universe's mass riddle

Boffins have calculated the mass of axions, which are a promising candidate for the mysterious dark matter loitering in our universe. Axions are up to ten billion times lighter than an electron, according to new supercomputer simulations of the early universe. With these figures in mind, scientists can now fine tune their …

Dark scientists' LUX-ZEPLIN doubles down on WIMP hunt

Scientists working on the Large Underground Xenon experiment recently announced they had found no signal of dark matter. But although the results were not quite what they hoped for, it has left them feeling even more determined to hunt down the universe’s most mysterious particle. A second phase of the experiment, known as LUX …
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
Big Bang

LIGO team may have found dark matter

Scientists think the recent discovery of gravitational waves observed from the collision of two black holes may have also detected signatures of the astrophysics mystery of dark matter. Scientists at Johns Hopkins university behind the September 2015 discovery by Laser Interferometer Gravitational-Wave Observatory (LIGO) wrote …
Darren Pauli, 24 Jun 2016
The robotic proto-DESI

I spy with my little fibre, ten MEELLION or so galaxies

Lawrence Berkeley National Laboratory boffins are getting ready to point thousands of optical fibres at the night sky, starting with a 10-robot system proof-of-concept. The ProtoDESI the boffins are wiring up will use robots to aim optical fibres at distant galaxies, a light-gathering trick the DESI (Dark Energy Spectroscopic …
Quenching Coma Galaxies

STARS SNUFFED in massive galactic whodunit

It's generally accepted by astronomers that dark matter makes up roughly 27 per cent of the known Universe – but in a galactic cluster 300 million light years away, that proportion is all skewiff. Simulations carried out by ICRAR (International Centre for Radio Astronomy Research) doctoral student Cameron Yozin using big iron …
Dark matter map

Australian dark matter hunter wins AU$1.75 million funding

In among the continuing bad-news stories for science funding in Australia, the federal government has at least found some spare coins for dark matter research. It did, at least, find money in the budget to sling AU$1.75 million towards the planned Stawell Underground Physics Laboratory. The lab would convert a played-out mine …
Dwarf Galaxy found by the Dark Energy Survey

Dark matter surveys turn up new satellites … orbiting the Milky Way

Dwarf galaxies circling the Milky Way, some with only a few hundred stars, could yield new hints about dark matter, according to boffins from the University of Cambridge and the Dark Energy Survey. The two groups independently discovered the dwarf galaxies while combing over first year's worth of data published by the Dark …
View of the LHC tunnel sector 3 to 4

Boffins grasp Big Knob, get ready to go ALL THE WAY at the LHC proton-punisher

Boffins at CERN are counting down the days until the rebuilt and now even more powerful Large Hadron Collider (LHC) particle accelerator restarts this spring, following a two-year-long shut down. Until this point, the LHC's power had been intentionally limited for safety reasons, but now its fullawesome power can be unleashed …
Kelly Fiveash, 15 Feb 2015
LHC cooling

Cool Large Hadron Collider to fire into doubly powerful ring

CERN boffins have started powering up their improved Large Hadron Collider – and say the particle accelerator will fire with twice the energy of its previous run by March. "With this new energy level, the LHC will open new horizons for physics and for future discoveries," said CERN Director-General Rolf Heuer. "I'm looking …
Iain Thomson, 15 Dec 2014
Hubble image with dark matter mass overlay

Dark matter-hunting boffins spot EXCITING signal in X-ray spectrum

Vid Boffins believe they may finally have detected the first sign of dark matter, after picking up an unusual photon emission signal in X-rays coming from space. Scientists from the EPFL lab of particle physics and cosmology (LPPC) and Leiden University are expected to publish their findings next week in Physical Review Letters. …
Team Register, 13 Dec 2014

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