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Astronomy news

Dark matter may be smoother than expected

Analysis of a giant new galaxy survey, made with ESO's VLT Survey Telescope in Chile, suggests that dark matter may be less dense and more smoothly distributed throughout space than previously thought. An international team ...

date13 hours ago in Astronomy
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Colliding galaxy clusters

Galaxy clusters contain a few to thousands of galaxies and are the largest bound structures in the universe. Most galaxies are members of a cluster. Our Milky Way, for example, is a member of the "Local Group," a set of about ...

dateDec 05, 2016 in Astronomy
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New dwarf satellite galaxy of Messier 83 found

(Phys.org)—Astronomers have found a new dwarf satellite of Messier 83 (M83, also known as the Southern Pinwheel Galaxy) located some 85,000 light years from its host. This satellite galaxy was designated dw1335-29 and could ...

dateDec 05, 2016 in Astronomy report
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ALMA measures size of seeds of planets

Researchers using the Atacama Large Millimeter/submillimeter Array (ALMA), have for the first time, achieved a precise size measurement of small dust particles around a young star through radio-wave polarization. ALMA's high ...

dateDec 05, 2016 in Astronomy
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Bethlehem star may not be a star after all

It is the nature of astronomers and astrophysicists to look up at the stars with wonder, searching for answers to the still-unsolved mysteries of the universe. The Star of Bethlehem, and its origin, has been one of those ...

dateDec 02, 2016 in Astronomy
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Tangled threads weave through cosmic oddity

New observations from the NASA/ESA Hubble Space Telescope have revealed the intricate structure of the galaxy NGC 4696 in greater detail than ever before. The elliptical galaxy is a beautiful cosmic oddity with a bright core ...

dateDec 01, 2016 in Astronomy
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First signs of weird quantum property of empty space?

By studying the light emitted from an extraordinarily dense and strongly magnetized neutron star using ESO's Very Large Telescope, astronomers may have found the first observational indications of a strange quantum effect, ...

dateNov 30, 2016 in Astronomy
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IAU formally approves 227 star names

The creation of a specialised IAU Working Group, the Working Group on Star Names (WGSN), was approved by the IAU Executive Committee in May 2016 to formalise star names that have been used colloquially for centuries. WGSN ...

dateNov 29, 2016 in Astronomy
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Project to map the history of the Milky Way

Our galaxy, the Milky Way, contains at least 100 billion stars. Over the centuries, astronomers have scoured the skies, developing a thorough understanding of the lives of those stars, from their formation in vast nebulae ...

dateNov 28, 2016 in Astronomy
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Hubble spies spiral galaxy

Spiral galaxy NGC 3274 is a relatively faint galaxy located over 20 million light-years away in the constellation of Leo (The Lion).

dateNov 23, 2016 in Astronomy
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Forming stars in the early universe

The first stars appeared about one hundred million years after the big bang, and ever since then stars and star formation processes have lit up the cosmos. When the universe was about three billion years old, star formation ...

Scientists discover a nearby superearth

Ph.D. student Alejandro Suárez Mascareño, of the Instituto de Astrofísica de Canarias (IAC) and the University of La Laguna (ULL), and his thesis director, Rafael Rebolo and Jonay Isaí González Hernández, have discovered ...

Bright radio bursts probe universe's hidden matter

Fast radio bursts, or FRBs, are mysterious flashes of radio waves originating outside our Milky Way galaxy. A team of scientists, jointly led by Caltech postdoctoral scholar Vikram Ravi and Curtin University research fellow ...

Distant star is roundest object ever observed in nature

Stars are not perfect spheres. While they rotate, they become flat due to the centrifugal force. A team of researchers around Laurent Gizon from the Max Planck Institute for Solar System Research and the University of Göttingen ...

Do extremely reddened quasars extinguish star formation?

Galaxies formed and grew billions of years ago by accumulating gas from their surroundings, or colliding and merging with other young galaxies. These early stages of galaxy assembly are believed to be accompanied by episodes ...

New accreting millisecond X-ray pulsar discovered

(Phys.org)—A new accreting millisecond X-ray pulsar (AMXP) has been found in one of our galaxy's most massive clusters, NGC 2808. The newly detected AMXP received designation MAXI J0911-655 and is part of an ultra-compact ...

Cosmic whistle packs a surprisingly energetic punch

Penn State University astronomers have discovered that the mysterious "cosmic whistles" known as fast radio bursts can pack a serious punch, in some cases releasing a billion times more energy in gamma-rays than they do in ...

A hydrogen-rich, passive galaxy

Cold gas in the form of neutral hydrogen atoms provides the reservoir for star formation in galaxies from the distant to the nearby Universe. Understanding how it accretes onto galaxies is of crucial importance because fresh ...

Image: Hubble steals a look at NGC 1222

NGC 1222, seen in this image taken with the Wide Field Camera 3 on board the NASA/ESA Hubble Space Telescope is a galaxy with a rather eventful story to tell. NGC 1222 has been described as a peculiar example of a type ...

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ExoMars orbiter images Phobos

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