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The riddle of galactic thin–thick disk solved

A long-standing puzzle regarding the nature of disk galaxies has finally been solved by a team of astronomers led by Ivan Minchev from the Leibniz Institute for Astrophysics Potsdam (AIP), using state-of-the-art ...

date22 hours ago in Astronomy
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Giant cosmic tsunami wakes up comatose galaxies

Galaxies are often found in clusters, with many 'red and dead' neighbours that stopped forming stars in the distant past. Now an international team of astronomers, led by Andra Stroe of Leiden Observatory ...

dateApr 24, 2015 in Astronomy
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Astronomers find runaway galaxies

We know of about two dozen runaway stars, and have even found one runaway star cluster escaping its galaxy forever. Now, astronomers have spotted 11 runaway galaxies that have been flung out of their homes ...

dateApr 23, 2015 in Astronomy
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Tau Ceti: The next Earth? Probably not

As the search continues for Earth-size planets orbiting at just the right distance from their star, a region termed the habitable zone, the number of potentially life-supporting planets grows. In two decades ...

dateApr 22, 2015 in Astronomy
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First exoplanet visible light spectrum

Astronomers using the HARPS planet-hunting machine at ESO's La Silla Observatory in Chile have made the first-ever direct detection of the spectrum of visible light reflected off an exoplanet. These observations ...

dateApr 22, 2015 in Astronomy
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Virtual telescope expands to see black holes

Astronomers building an Earth-size virtual telescope capable of photographing the event horizon of the black hole at the center of our Milky Way have extended their instrument to the bottom of the Earth—the ...

dateApr 21, 2015 in Astronomy
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Radio astronomy backed by big data projects

As the leading edge of the Square Kilometre Array (SKA) project, the Murchison Widefield Array (MWA) radio telescope is at the forefront of the big data challenges facing radio astronomy, presenting and solving ...

dateApr 21, 2015 in Astronomy
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Black hole hunters tackle a cosmic conundrum

Dartmouth astrophysicists and their colleagues have not only proven that a supermassive black hole exists in a place where it isn't supposed to be, but in doing so have opened a new door to what things were ...

dateApr 20, 2015 in Astronomy
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Cosmologically complicating dust

The universe was created 13.7 billion years ago in a blaze of light: the big bang. Roughly 380,000 years later, after matter (mostly hydrogen) had cooled enough for neutral atoms to form, light was able to ...

dateApr 20, 2015 in Astronomy
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Image: Thor's Helmet nebula in the X-ray spectrum

This brightly coloured scene shows a giant cloud of glowing gas and dust known as NGC 2359. This is also dubbed the Thor's Helmet nebula, due to the arching arms of gas stemming from the central bulge and ...

dateApr 20, 2015 in Astronomy
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White dwarf may have shredded passing planet

The destruction of a planet may sound like the stuff of science fiction, but a team of astronomers has found evidence that this may have happened in an ancient cluster of stars at the edge of the Milky Way ...

Giant galaxies die from the inside out

A major astrophysical mystery has centred on how massive, quiescent elliptical galaxies, common in the modern Universe, quenched their once furious rates of star formation. Such colossal galaxies, often also ...

Protosuns teeming with prebiotic molecules

Complex organic molecules such as formamide, from which sugars, amino acids and even nucleic acids essential for life can be made, already appear in the regions where stars similar to our Sun are born. Astrophysicists ...

'Venus zone' narrows search for habitable planets

Long before the hunt began to find Earth lookalikes around other stars, one planet in the Solar System had already been named Earth's twin. With its similar size and mass, Venus measures very close to Earth, with one major yet signif ...

Video: How do black holes evaporate?

Nothing lasts forever, not even black holes. According to Stephen Hawking, black holes will evaporate over vast periods of time. But how, exactly, does this happen?

An exoplanet with an infernal atmosphere

As part of the PlanetS National Centre of Competence in Research (NCCR), astronomers from the Universities of Geneva (UNIGE) and Bern, Switzerland, have come to measure the temperature of the atmosphere of ...

Accelerating universe? Not so fast

A University of Arizona-led team of astronomers found that the type of supernovae commonly used to measure distances in the universe fall into distinct populations not recognized before; the findings have ...

Stars with the chemical clock on hold

An international team of astrophysicists, led by Cristina Chiappini from the Leibniz Institute for Astrophysics Potsdam, has discovered a group of red giant stars for which the 'chemical clock' does not work: ...

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