News tagged with galaxy cluster

A possible signal from dark matter?

(Phys.org) —Galaxies are often found in groups or clusters, the largest known aggregations of matter and dark matter. The Milky Way, for example, is a member of the "Local Group" of about three dozen galaxies, ...

dateAug 12, 2014 in Astronomy
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Triangulum galaxy snapped by VST

The VLT Survey Telescope at ESO's Paranal Observatory in Chile has captured a beautifully detailed image of the galaxy Messier 33. This nearby spiral, the second closest large galaxy to our own galaxy, is ...

dateAug 06, 2014 in Astronomy
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Mysterious X-ray signal intrigues astronomers

(Phys.org) —A mysterious X-ray signal has been found in a detailed study of galaxy clusters using NASA's Chandra X-ray Observatory and ESA's XMM-Newton. One intriguing possibility is that the X-rays are ...

dateJun 24, 2014 in Astronomy
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Very distant galaxy cluster confirmed

The structures and star populations of massive galaxies appear to change as they age, but much about how these galaxies formed and evolved remains mysterious. Many of the oldest and most massive galaxies ...

dateMay 21, 2014 in Astronomy
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NASA image: A hungry starburst galaxy

(Phys.org) —This new Hubble picture is the sharpest ever image of the core of spiral galaxy Messier 61. Taken using the High Resolution Channel of Hubble's Advanced Camera for Surveys, the central part ...

dateMay 13, 2014 in Astronomy
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Entire star cluster thrown out of its galaxy

(Phys.org) —The galaxy known as M87 has a fastball that would be the envy of any baseball pitcher. It has thrown an entire star cluster toward us at more than two million miles per hour. The newly discovered ...

dateApr 30, 2014 in Astronomy
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Image: X-raying the cosmos

When we gaze up at the night sky, we are only seeing part of the story. Unfortunately, some of the most powerful and energetic events in the Universe are invisible to our eyes – and to even the best optical ...

dateApr 22, 2014 in Astronomy
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Cosmologists weigh cosmic filaments and voids

(Phys.org) —Cosmologists have established that much of the stuff of the universe is made of dark matter, a mysterious, invisible substance that can't be directly detected but which exerts a gravitational ...

dateApr 17, 2014 in Astronomy
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Pushy neighbors force stellar twins to diverge

(Phys.org) —Much like an environment influences people, so too do cosmic communities affect even giant dazzling stars: Peering deep into the Milky Way galaxy's center from a high-flying observatory, Cornell ...

dateApr 15, 2014 in Astronomy
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