Latest Large-scale structure of the cosmos Stories
Researchers found that the density of the dark matter was greater near the center of the galaxy clusters, on average, gradually becoming more diffuse moving out towards the cluster’s edge. This is consistent with a cold dark matter model, which, along with other evidence, has been the leading candidate theory for some years.
Using the NSF's Green Bank Telescope, astronomers have discovered large clouds of hydrogen lurking in our galactic neighborhood.
Space warps are more commonly known as "gravitational lenses," which allows objects in space to act as a giant lens to other objects even farther away. Studies have found that the human brain is much better at identifying lenses than current computer algorithms, so astronomers are asking volunteers to participate in the Space Warps project.
A duo of astronomers has discovered a Blue Supergiant star located far beyond our Milky Way Galaxy in the constellation Virgo
Scientists are coming together this summer to try and collaborate on solving the mystery of dark matter.
In a course of studying young galaxies at a distance of 11.6 billion light years from Earth, a team of astronomers noticed a strangely shaped galaxy that looks like a "magatama", an ancient, comma-shaped Japanese amulet made of stone.
In today's Your Universe Today Podcast, Harvard-Smithsonian astrophysicist Dr. Matthew Walker explores the question: "What is Dark Matter?"
Scientists at the institute have found that a phenomenon known as “cosmic web stripping” is responsible for the lack of dwarf galaxies near the Milky Way that should be there according to the theory of cold dark matter and dark energy.
As grand and colorful as it is, our solar system is a fleck in the grander cosmos. Our Milky Way galaxy has hundreds of billions of solar systems, yet it is only just a drop in the sea of galaxies.
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.
The Virgo Cluster consists of galaxies at a distance of around 59 Mly away in the constellation Virgo. Containing between 1300 to 2000 galaxies the Virgo Cluster is the heart of the Local Supercluster. Its mass is estimated at 1.2 Ã— 1015 Mâ˜‰ out to 8 degrees of the cluster's center or a radius of about 2.2 Mpc. Most of the brighter galaxies in the cluster were discovered by Charles Messier in the late 1770's and early 1780's, including the giant elliptical Messier 87. Messier...
The two Magellanic Clouds (or Nubeculae Magellani), composed of the Large Megellanic Cloud and the Small Magellanic Cloud, are irregular dwarf galaxies visible in the southern hemisphere. They are members of our Local Group and orbit the Milky Way galaxy. Persian astronomer Al Sufi, in 964, was the first to have written anything about the Magellanic Clouds proving they have been known since early time amongst the Middle East peoples. Sufi, in his Book of Fixed Stars, calls the clouds...
The NGC 5866, located in the Draco constellation, is named after the galaxy with the highest magnitude however some catalogs list NGC 5907 as the brightest member. The M51 Group and the M101 Group are NGC 5866 closest neighbor. The distances between these groups are similar which suggest the three groups are part of a single large, loose, elongated group. However, most identification methods consider them separate.
The M101 Group, one of many in the Virgo Supercluster, is located in Ursa Major and named after the brightest galaxy in the group, the Pinwheel Galaxy (M101). The group is composed mostly of members that are companions of the Pinwheel Galaxy. The M51 Group and the NGC 5866 Group are M101's closest neighbor. The distances between these groups are similar which suggest the three groups are part of a single large, loose, elongated group. However, most identification methods consider them...
The M81 Group, containing the well known galaxies Messier 81 and Messier 82, is a group of galaxies within the constellation Ursa Major. Along with Messier 81 and 82 are several other galaxies with apparent brightness. The center, located at an approximate distance of 3.6 Mpc, is one of the nearest groups to the Local Group. The total estimated mass of the group is (1.03 Â± 0.17) Ã— 1012Mâ˜‰. The Virgo Supercluster contains the M81 Group, the Local Group, and some other nearby...
- A political dynamiter.