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Tag: galaxy

Hubble captures glow of giant galaxy cluster

Hubble captures glow of giant galaxy cluster

Science
April 13 (UPI) -- A new image from the Hubble Space Telescope showcases a massive galaxy cluster, a web of thousands of galaxies tied together by the tug of gravity.The galaxy cluster featured in the image is named PLCK G308.3-20.2. Like an ecosystem full of biodiversity, the cluster is home to wide range of galaxies -- all different types, shapes and sizes.This particular galaxy cluster is situated 5 billion light-years away from Earth.As recently as a few decades ago, astronomers thought galaxy clusters were the largest structures in the universe, but in the 1980s, scientists realized galaxy clusters were organized into structures called superclusters.Superclusters are made of groups of clusters that can stretch hundreds of millions of light-years across. Some superclusters cover as much...
Hubble spots Einstein ring surrounding galaxy cluster

Hubble spots Einstein ring surrounding galaxy cluster

Science
April 6 (UPI) -- A new image from Hubble showcases dozens of distant galaxies, as well as an astronomical phenomenon known as an Einstein ring.The lens-like circle at the image's center represents the distortion caused by the gravity of a galaxy cluster named SDSS J0146-0929. The cluster is comprised of millions of galaxies, all tied together by the pull of gravity.The gravity of the cluster's millions of galaxies is strong enough to warp the surrounding space-time.As distant light travels toward Earth, it bends around the massive cluster, creating the lens-like phenomenon."In this image, the light from a background galaxy is diverted and distorted around the massive intervening cluster and forced to travel along many different light paths toward Earth, making it seem as though the galaxy ...
Ghostly galaxy may be missing dark matter

Ghostly galaxy may be missing dark matter

Science
An unusually transparent galaxy about the size of the Milky Way is prompting new questions for astrophysicists.The object, with the catchy moniker of NGC1052-DF2, appears to contain no dark matter.If this turns out to be true, it may be the first galaxy of its kind - made up only of ordinary matter. Currently, dark matter is thought to be essential to the fabric of the Universe as we understand it.The study is published in Nature. A new map of the Universe's dark matterHubble scores unique view of distant galaxyGhostly glowThe authors of the study weren't initially on the hunt for a dark matter-free galaxy; instead they had set out to take a closer look at large, ultra-diffuse galaxies. These are similar in size to the spiral galaxies we're more familiar with, but have a fraction of the nu...
Samsung Galaxy S9 focuses on the camera

Samsung Galaxy S9 focuses on the camera

Technology
Media playback is unsupported on your deviceNew and improved camera capabilities are the main thrust of Samsung's pitch for its latest flagship smartphones, the Galaxy S9 and larger S9+.The handsets gain a super-slow-motion facility designed to make it easy to extend key moments of action. They also gain a type of lens that should improve low-light photography.Samsung's sales rose in 2017 but not as fast as those of many Chinese rivals.Experts suggest the new facilities represent minor upgrades.That may make marketing the S9 a challenge since the phone's design also strongly resembles that of the existing S8. Slightly smaller bezels at the top and bottom and a new position for the fingerprint sensor are the biggest alterations.The S9+ is only a little more distinct from the S8+. It now fea...
Collision of giant galaxy clusters yields colorful image

Collision of giant galaxy clusters yields colorful image

Science
Nov. 7 (UPI) -- A new image released by the National Radio Astronomy Observatory showcases the intense radio emissions triggered by the collision of several giant galaxy clusters.The cosmic collision triggered shockwaves and released massive amounts of energy, heating up gas and dust across a region of space several million light-years wide.The massive galaxy cluster is named Abell 2744, or Pandora's Cluster. It's located 4 billion light-years from Earth.The newly released image is a composite of observations made by several instruments. Scientists combined new data collected by the National Science Foundation's Karl G. Jansky Very Large Array with older data recorded by NASA's Chandra X-ray observatory.The renderings of Abell 2744's radio wave and X-ray emissions are overlaid on a visible...