Latest Dark matter Stories

Brown Dwarf Stars Can Grow Rocky Planets
2012-11-30 06:05:22

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered that the outer region of a dusty disc encircling a brown dwarf contains solid grains like those found in denser discs of newborn stars.

Hubble Sets Dark Matter Record Straight
2012-11-29 19:24:08

A new observation of Abell 520 has helped astronomers determine that the core of the galaxy cluster is not over-dense in dark matter after all.

Galaxy Clusters Offer Insight On Dark Matter
2012-11-21 09:56:07

Astronomers use the distribution of clusters of galaxies to understand dark matter, and a research team has just used this tool to help understand the expansion history of our universe.

Dark Matter Detector Gets Helping Hand From Livermore Team
2012-11-16 05:58:38

Nearly a mile underground beneath the Black Hills of South Dakota, scientists from Lawrence Livermore National Laboratory (LLNL) are using a tank to make key contributions to a physics experiment that will look for one of nature's most elusive particles, "dark matter."

Crowdsourcing Project Could Help Find Dark Matter
2012-11-01 04:18:38

Elusive dark matter makes up for about 95 percent of the mass of the universe, but scientists have had a hard time finding it.

The Local Universe Offered Up In Unprecedented Detail
2012-10-31 13:21:28

The intimate details of 100 galaxies in the local universe have been published by the Calar Alto Legacy Integral Field Area survey (CALIFA).

New Scenario for the Birth of Type Ia Supernovae
2012-10-26 05:49:37

Astronomer J. Craig Wheeler reports in The Astrophysical Journal that he has a new theory on the identity of the "parents" of Type Ia supernovae.

Stars Living On The Edge
2012-10-25 04:37:37

A mysterious infrared glow seen across the entire sky comes from isolated stars beyond the edges of galaxies, according to a new study using data from NASA's Spitzer Space Telescope.

Hubble Helps Map Dark Matter In 3D
2012-10-17 04:20:05

A giant filament of dark matter extends 60 million light-years from one of the most massive galaxy clusters known. Leftover from the very first moments after the Big Bang, the filament is part of the cosmic web that constitutes the structure of the Universe.

Latest Dark matter Reference Libraries

2014-01-12 00:00:00

Image Caption: The Hubble Extreme Deep Field (XDF) was completed in September 2012 and shows the farthest galaxies ever photographed by humans. Each speck of light in the photo is an individual galaxy, some of them as old as 13.2 billion years; the observable universe is estimated to contain more than 200 billion galaxies. Credit: NASA/Wikipedia What is Cosmology? I once commented to an acquaintance that I was fascinated by the field of Cosmology, and mused that if I had more time, I...

2010-09-13 16:56:08

The Coma Cluster (Abell 1656), along with the Leo Cluster, is one of two major clusters compromising the Coma Supercluster. It contains over 1000 identified galaxies. Most of the galaxies in the center of the Coma Cluster are elliptical galaxies including both dwarf and giant. However the center is dominated by NGC 4874 and NGC 4889, two giant elliptical galaxies. The brightest galaxies are visible, a few degrees north of the galactic pole, with an amateur telescope larger than 20 cm. The...

2010-09-07 17:31:13

The Bullet Cluster is made up of two colliding clusters galaxies. According to a 2006 study, the Bullet Cluster also shows the best evidence for the existence of Dark Matter. From observations of galaxy cluster collisions it has been found that many show displacement between their center of visible matter and their gravitational potential. Each component, stars, gas, and dark matter, within a cluster pair behaves differently during a collision allowing for each to be studied separately....

2010-09-07 17:03:18

The Abell 520 galaxy cluster is an strange structure formed by a major merger. Due to its odd and chaotic nature it has been given the nick-name the Train Wreck Cluster. The Dark Matter within the cluster does not act as expected like it does in other clusters, therefore, Abell 520 creates problems for many of the prevailing theories about Dark Matter. It also disrupts many alternative theories of modified gravity. Similar to the Bullet Cluster the gas contents and galaxies within the...

2010-09-13 16:46:47

The cluster CL0024+17, located in Pisces, is a galaxy cluster that is allowing astronomers to probe the distribution of dark matter in space. Dark matter does not reflect light and therefore cannot be seen. It is only detectable by the way its gravity affects the lights around it. Using gravitational lensing astronomers observe the distorted light around the dark matter and are able to tell where it is located within a cluster. A dark matter ring found near the cluster's center, by...

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