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Universe

The spherical middle chamber of DarkSide-50 is filled with 7,000 gal of scintillator fluid

Like the Higgs Boson, dark matter is one of those things in the Universe that evidence points to, but is very difficult to pin down. A team of researchers is looking to verify the existence of this most elusive of ingredients that is thought to make up 23 percent of the Universe using powerful detectors buried deep in an Italian mountain.  Read More

Artist's concept of eLISA passing through gravitational waves (Image: AEI/MM/exozet)

Mark your calendars for 2034, because that is when science is set to get a whole new spectrum to play with when the European Space Agency (ESA) launches its eLISA mission. Consisting of a constellation of three spacecraft flying in precise formation, eLISA will study gravitational waves in a manner that may one day revolutionize our understanding of the Universe.  Read More

The Universe is big, and so is the challenge of understanding its large-scale structure (P...

Our knowledge of the large-scale structure of the Universe is gradually taking shape. However, our improved vision is mostly being statistically squeezed from huge data sets. Working backward from a statistical analysis to a putative fact about the (singular) Universe, to which statistics do not apply on a cosmological scale, is a dicey business. A case in point is a recent look at the biggest known structures in the Universe – large quasar groups.  Read More

An artist's rendition of the newly-discovered z8-GND-5296 galaxy (Image: UCR/NASA)

Astronomers at UC Riverside have combined observations from space and ground telescopes to discover what they say is the oldest known galaxy with a precisely measured distance, seen as it was just 700 million years after the Big Bang.  Read More

Artist's impression of Planck at L2 (Image: ESA)

On Wednesday, at 12:10:27 GMT, ESA’s Planck space telescope ended its four and a half year mission when project scientist Jan Taube sent the command telling the unmanned probe to switch itself off.  Read More

Is dark energy needed to accelerate the expansion of the universe? (Image: Shutterstock)

Fans of Doctor Who will be very familiar with the stupefied phrase uttered by all new visitors to his Tardis: "It's...bigger...on the inside." As it turns out, this apparently irrational idea may have something to contribute to our understanding of the universe. A team of cosmologists in Finland and Poland propose that the observed acceleration of the expansion of the universe, usually explained by dark energy or modified laws of gravity, may actually be the result of regions of spacetime that are larger on the inside than they appear from the outside. The researchers have dubbed these "Tardis regions."  Read More

The HSC captured a high-resolution image of the entire Andromeda galaxy in one go (Image: ...

When taking snapshots, a good telephoto lens can be handy, but when your subject is 2.5 million light years away, it’s invaluable. To show off the capabilities of the new Hyper-Suprime Cam (HSC) located on Mauna Kea, Hawaii, an international team of astrophysicists has released high resolution images of the Andromeda galaxy that not only show off incredible detail, but may help shed light on the evolution of the Universe and the distribution of dark matter.  Read More

HD 140283 - the Methuselah star (Photo: Hubble via W.M. Keck Observatory)

An international team of scientists using one of the pair of 10-meter telescopes at the W.M. Keck Observatory on the summit of Mauna Kea on the island of Hawaii has now shown that the early moments of our Universe closely followed the theoretical model for the genesis of the elements. Improved observational and modeling methods show that the elemental composition of the post-Big Bang universe agrees with the predictions of that model, eliminating what was thought to be a substantial discrepancy between theory and observation.  Read More

Massive galaxy LRG 3-757 forms a gravitational lens for a second galaxy (blue ring) at a d...

Gravitational lenses, which are massive galaxies or galaxy clusters that act as a magnifying glass by bending light passing them, are one of the Universe's golden gifts to astronomers. To help unlock the mysteries that might lie behind these untapped celestial resources, Zooniverse, a program of the Citizens Science Alliance, has begun the Space Warps project. It allows citizen scientists to put their skills at pattern/image recognition to use, toward finding these fugitive gravitational lenses.  Read More

The ESA's Planck space telescope has revealed a detailed image showing the 'afterglow' of ...

A new image acquired by the European Space Agency's (ESA) Planck space telescope provides an unprecedented view of the oldest light in the Universe. The image represents the most detailed mapping of cosmic microwave background (CMB) ever created and both solidifies and questions our current understanding of the Universe.  Read More

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