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All Posts Tagged Tag: ‘Galaxies’

Yet Another Early-Universe Galaxy Has Been Spotted

Astronomers this week revealed that yet another galaxy from the very early universe has been spotted. The galaxy, dubbed Abell2744_Y1, is estimated to have existed just 650 million years after the big bang, which took place 13.8 billion years ago. The object was spotted during a survey of the Abell 2744 galaxy cluster using the Hubble and Spitzer space telescopes. …

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Andromeda Galaxy: Amazing Photo Was Captured

Depending where you are in the world right now, with a telescope and camera, you have an opportunity to capture amazing images of the Andromeda galaxy. Astrophotographer Jeff Johnson took an amazing shot of the galaxy that is being shared around the web. In an email to SPACE.COM, Johnson explains how he was able to capture the remarkable image. In …

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Three Ancient Galaxies Spotted Merging

Astronomers this week revealed that they have spotted three ancient galaxies that appear to be merging. The observations, which were made using both the Hubble Space Telescope and the Atacama Large Millimeter/submillimeter Array (ALMA) are recorded in a paper to be published in The Astrophysical Journal. The three galaxies are located inside a large gas cloud that is located almost …

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Astronomers Confirm Milky Way Particle Jet

Astronomers this week have revealed the confirmation that the black hole at the center of our galaxy is ejecting a stream of high-energy particles. The new findings have been published in The Astrophysical Journal. Researchers for some time have assumed that our Milky Way galaxy has a jet of particles spouting from its center, much like other galaxies similar to …

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New Confirmed Most-Distant Galaxy Announced

Just over one year ago, NASA announced that the most distant galaxy yet found may have been spotted. Just two months later another galaxy took the title of most distant candidate. As astronomers improve techniques to peer further into the universe’s past this sort rapid record-setting can be expected for years to come, and today yet another galaxy has actually …

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Distant Galaxy Caught ‘Feeding’ on Gas Clouds

Astronomers using the European Southern Observatory‘s Very Large Telescope have found a distant galaxy that is “feeding” on nearby gas clouds. The flow of gas into the galaxy, astronomers say, is generating star formation and driving the rotation of the galaxy. The new observations lend credence to the hypothesis that galaxies grow and form stars by drawing in nearby material. …

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NASA Picture Shows Largest-Seen Spiral Galaxy

Astronomers this week unveiled a new image of the largest spiral galaxy known to exist. A larger version of the image can be seen here. The galaxy, named NGC 6872, was crowned with the title following an examination of archival data from NASA‘s Galaxy Evolution Explorer (GALEX) mission. From tip-to-tip NGC 6872 measures 522,000 light-years, or around five times the …

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Milky Way Galaxy “Geysers” Spotted

A team of astronomers has detected detected huge outflows of charged particles streaming out of the center of our galaxy, the Milky Way. The outflows were detected using the CSIRO’s Parkes radio telescope in Australia, and the new research has been published today in the journal Nature. “These outflows contain an extraordinary amount of energy – about a million times …

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NASA’s Hubble Takes Census of Early Galaxies

Using the Hubble Space Telescope, astronomers have discovered seven previously unseen galaxies that formed over 13 billion years ago – a time when galaxies were just beginning to form. The new discovery has provided researchers with a “statistically robust” sample of early galaxies, revealing how abundant such galaxies were at the beginning of the universe. The images come from a …

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Enormous Galaxy Cluster Spotted by NASA’s WISE

Galaxy clusters, the rarest of galaxy groupings, can be difficult for astronomers to find. NASA‘s Wide-field Infrared Survey Explorer (WISE) space telescope, however, has just found a gigantic galaxy cluster, and is expected to uncover thousands more. The new findings have been published in The Astrophysical Journal. “One of the key questions in cosmology is how did the first bumps …

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New “Green Bean” Galaxies Discovered

A new type of galaxy nicknamed “green bean galaxies” has been identified and they are some of the rarest objects in the known universe. The nickname comes from the galaxies’ appearance: they glow with intense light generated by the ionized gas surrounding a super-massive black hole. They also resemble “green pea galaxies,” but are larger. Though most galaxies have a …

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Hubble Photo Shows Blue Compact Dwarf Galaxy

The above photo is an image of the irregular galaxy NGC 5253, taken by the Hubble Space Telescope‘s Advanced Camera for Surveys. It combines both visible and infrared exposures. A larger version of the image can be viewed here. The galaxy is the closest known Blue Compact Dwarf Galaxy (BCD), at a distance of around 12 million light-years from Earth. …

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