Distant ­supernovas (bright dots), captured by NASA’s Hubble telescope, open new vistas into the expansion history of the early universe. As early as 9 billion years ago, a mysterious repulsive force known as dark energy is seen exerting its influence.Even weirder than dark matter—the invisible stuff constituting most of the mass of the universe—is dark energy, a myst... read full post picked by rambler 3 years ago

Galaxies today are struggling to clump together against the incredible repulsive power of dark energy, hints a new survey of thousands of galaxies. Measuring this anti-clumping effect puts a new arrow in the quiver of cosmologists seeking to uncover the nature of the mysterious force. picked by deepchill 2 years ago

Scientists don't know what dark energy is, but they observe its tugging effect, which causes the expansion of the universe to accelerate. Now they have seen this mysterious force in some of the largest known features of the cosmos, called superclusters and supervoids. picked by AutumnLotus 1 year ago

The two biggest mysteries in cosmology may be one. A new theory says that dark matter and dark energy could arise from a single dark fluid that permeates the whole universe. And this could mean Earth-based dark matter searches will come up empty. picked by AutumnLotus 2 years ago

I didn't know there were so many ways to try to get energy from waves. There are a couple of videos showing how some of the systems work. picked by JFargo1688 11 months ago

Astronomers have glimpsed the largest cluster of galaxies ever seen in the distant, early universe. The discovery of this far-off group, estimated to contain as much mass as a thousand large galaxies, offers further proof of the existence of the enigmatic force called dark energy. picked by AutumnLotus 1 year ago

Cosmologists at Durham University’s world-leading Institute for Computational Cosmology (ICC) have run a series of huge computer simulations of the Universe that could help solve one of astronomy’s greatest mysteries. The results tell researchers how to measure dark energy – a force that counteracts gravity and could decide the ultimate fate of the cosmos. picked by AutumnLotus 2 years ago

Earth may be trapped in an abnormal bubble of space-time that is particularly void of matter. Scientists say this condition could account for the apparent acceleration of the universe's expansion, for which dark energy currently is the leading explanation. picked by AutumnLotus 1 year ago

Suns that exploded 9 billion years ago have helped prove that a mysterious force called dark energy was pushing the universe apart even back then, scientists reported on Thursday.

Don't expect any real answers though, we still have no idea what dark energy is. picked by donteatpoop 3 years ago

great tips to remove dark circles using photoshop picked by natureseeker 3 years ago

"Dark Tourism" was coined to describe trips to places associated with disaster and depravity. And whether you care to admit it or not, you're a dark tourist. picked by teaya21 3 years ago

Some had hoped it might be just an illusion. But it looks like dark energy is real and here to stay, as astronomers "image" the mysterious entity in action. picked by AutumnLotus 2 years ago

With the conventional theory of gravitation, based on Newton’s ideas and refined by Einstein 92 years ago, dark matter helps to explain the motion of galaxies, and clusters of galaxies, on the largest scales. Now two Canadian researchers suggest that the motion of galaxies in a distant cluster is more easily explained by a Modified Gravity (MOG) theory than by the presence of dark matter. picked by AutumnLotus 2 years ago

About 70 percent is dark energy, and around 22 percent of the universe is made up of dark matter. Dark matter makes up a substantial part of the universe. Knowing what it is would answer a crucial question about the universe as a whole. picked by braveheart 3 years ago

The viability of harnessing waves as a lucrative renewable energy source received a boost last week following the announcement that the world's first commercial wave energy project will begin delivering wave-generated energy to the north of Portugal later this month.

also see here picked by 2manyusernames 3 years ago

California Gov. Arnold Schwarzenegger has repeatedly stated that he is committed to end his state’s addiction to oil. But Schwarzenegger has refused to support Proposition 87, even though it provides one of the strongest prospects for the state to raise funds for alternative energy research and development. picked by shredtone 3 years ago

a 3-part documentary hosted by Sir Martin Reese, who ponders such questions as extraterrestrial life, dark energy & matter, and are we real? picked by 2manyusernames 3 years ago

Astronomers have used ESO’s Very Large Telescope to measure the distribution and motions of thousands of galaxies in the distant Universe. This opens fascinating perspectives to better understand what drives the acceleration of the cosmic expansion and sheds new light on the mysterious dark energy that is thought to permeate the Universe. picked by AutumnLotus 2 years ago

Small, ultrafaint "hobbit" galaxies recently found hovering around our Milky Way are comprised almost entirely of dark matter, a new study confirms. Dark matter is a mysterious substance scientists think accounts for most of the mass in the universe but that is invisible to current instruments. picked by AutumnLotus 2 years ago

'Dark energy', which researchers have spent years trying to fathom, isn't necessary to explain our universe after all, according to a new solution to Einstein's theory of general relativity. picked by leopoldogolba 2 years ago