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astrophysics, cosmology, the universe...

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A cold cosmic mystery solved

Astronomers discover what might be the largest known structure in the universe that leaves its imprint on cosmic microwave background radiation.

Posted: Apr 20th, 2015

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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 have detected this biomolecule in five protostellar clouds and propose that it forms on tiny dust grains.

Posted: Apr 16th, 2015

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Search for advanced civilizations beyond Earth finds nothing obvious in 100,000 galaxies

After searching 100,000 galaxies for signs of highly advanced life, a team of scientists using observations from NASA's WISE satellite has found no evidence of advanced civilizations there. The idea behind the research is that, if an entire galaxy had been colonized by an advanced spacefaring civilization, the energy produced by that civilization's technologies would be detectable in mid-infrared wavelengths.

Posted: Apr 14th, 2015

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Mars might have liquid water

Researchers have long known that there is water in the form of ice on Mars. Now, new research from NASA's Mars rover Curiosity shows that it is possible that there is liquid water close to the surface of Mars. The explanation is that the substance perchlorate has been found in the soil, which lowers the freezing point so the water does not freeze into ice, but is liquid and present in very salty salt water - a brine.

Posted: Apr 13th, 2015

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Accelerating universe? Not so fast

A 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 implications for our understanding of how fast the universe has been.

Posted: Apr 12th, 2015

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An exoplanet with an infernal atmosphere

As part of the PlanetS National Centre of Competence in Research (NCCR), astronomers have come to measure the temperature of the atmosphere of an exoplanet with unequalled precision, by crossing two approaches.

Posted: Apr 10th, 2015

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Our Sun came late to the Milky Way's star-birth party

In one of the most comprehensive multi-observatory galaxy surveys yet, astronomers find that galaxies like our Milky Way underwent a stellar 'baby boom', churning out stars at a prodigious rate, about 30 times faster than today.

Posted: Apr 10th, 2015

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