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 1 year ago

Huge filaments of dark matter have been detected in a survey of thousands of distant galaxies. The discovery supports the idea that dark matter drove the formation of galaxies and larger cosmic structures and resolves a discrepancy in previous studies about how much dark matter the universe contains. picked by AutumnLotus 6 months 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 11 months 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 2 weeks 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 7 months 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 3 months 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 2 years ago

Astronomers are using the NASA/ESA Hubble Space Telescope to dissect one of the largest structures in the Universe as part of a quest to understand the violent lives of galaxies. Hubble is providing indirect evidence of unseen dark matter tugging on galaxies in the crowded, rough-and-tumble environment of a massive supercluster of hundreds of galaxies. picked by AutumnLotus 7 months ago

Stars in dwarf spheroidal galaxies behave in a way that suggests the galaxies are utterly dominated by dark matter. Mario Mateo and Matthew Walker measured the velocity of 6,804 stars in seven dwarf satellite galaxies of the Milky Way: Carina, Draco, Fornax, Leo I, Leo II, Sculptor and Sextans. They found that, contrary to what Newton's law of gravity predicts, stars in these galaxies do not move ... read full post picked by AutumnLotus 10 months ago

In the early 1900s, Edwin Hubble made the startling discovery that our Milky Way galaxy is not alone. It is just one of many galaxies, or "island universes," as Hubble dubbed them, swimming in the sea of space. Now, a century later, NASA's Galaxy Evolution Explorer is helping piece together the evolution of these cosmic species. picked by AutumnLotus 9 months ago

An image based on data taken with ESO's Very Large Telescope reveals a triplet of galaxies intertwined in a cosmic dance. The three galaxies, catalogued as NGC 7173 (top), 7174 (bottom right) and 7176 (bottom left), are located 106 million light-years away towards the constellation of Piscis Austrinus (the 'Southern Fish'). picked by AutumnLotus 7 months 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 2 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 7 months ago

A team of astronomers looking at the universe’s distant past found nine young, unusually compact galaxies, each weighing in at 200 billion times the mass of the Sun.

These young galaxies are the equivalent of a human baby that is 20 inches long, yet weighs 180 pounds. picked by AutumnLotus 4 months ago

Two galaxies perform an intricate dance in this new Hubble Space Telescope image. The galaxies, containing a vast number of stars, swing past each other in a graceful performance choreographed by gravity. picked by AutumnLotus 10 months ago

A half-dozen hefty black holes hide out where they are least expected, in relatively skinny galaxies. The discovery implies galaxies don't need bulging bellies to harbor monstrous black holes. picked by AutumnLotus 7 months ago

When we think of a galaxy, we think of our own Milky Way or perhaps Andromeda...not invisible, starless blobs. picked by Neiako 1 year ago

Using ESO's Very Large Telescope, an international team of astronomers has discovered a stunning rare case of a triple merger of galaxies. This system, which astronomers have dubbed 'The Bird' - albeit it also bears resemblance with a cosmic Tinker Bell - is composed of two massive spiral galaxies and a third irregular galaxy. picked by AutumnLotus 7 months ago

great tips to remove dark circles using photoshop picked by natureseeker 1 year ago

As the sizes of sensor networks and mobile devices shrink toward the microscale, and even nanoscale, there is a growing need for suitable power sources. Because even the tiniest battery is too big to be used in nanoscale devices, scientists are exploring nanosize systems that can salvage energy from the environment. picked by AutumnLotus 11 months ago