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Space Exploration News

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astrophysics, cosmology, the universe...

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Application of laser microprobe technology to Apollo samples refines lunar impact history

It's been more than 40 years since astronauts returned the last Apollo samples from the moon, and since then those samples have undergone some of the most extensive and comprehensive analysis of any geological collection. Researchers have now refined the timeline of meteorite impacts on the moon through a pioneering application of laser microprobe technology to Apollo 17 samples.

Posted: Feb 12th, 2015

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Birth of a star quartet

An international team of researchers has discovered something extraordinary in space: a new star system forming from parts of a filamentary gas cloud.

Posted: Feb 12th, 2015

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Planck reveals the dynamic side of the Universe

The Planck collaboration has today released data from four years of observation by the European Space Agency's Planck spacecraft. The aim of the Planck mission is to study the Cosmic Microwave Background, the light left over from the Big Bang.

Posted: Feb 11th, 2015

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Dark matter at the heart of our Galaxy

The Universe is pervaded by a mysterious form of matter, dubbed dark matter, about five times more abundant than the ordinary matter we are familiar with. Its existence in galaxies was robustly established in the 1970s. Scientists now obtained for the first time a direct observational proof of the presence of dark matter in the innermost part our Galaxy, the Milky Way.

Posted: Feb 9th, 2015

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Planck reveals first stars were born late

New maps from the Planck satellite uncover the 'polarised' light from the early Universe across the entire sky, revealing that the first stars formed much later than previously thought.

Posted: Feb 8th, 2015

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Lifting the veil on a dark galaxy

A cluster of young, pulsating stars discovered in the far side of the Milky Way may mark the location of a previously unseen dark-matter dominated dwarf galaxy hidden behind clouds of dust.

Posted: Feb 8th, 2015

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Still doubts on gravitational waves

In March last year the BICEP2 team claimed to have observed, for the first time, the effects of gravitational waves in cosmic background radiation. In September Planck demonstrated that the signal observed might be the result of 'contaminants' due to the polarized radiation produced by our Galaxy. A new paper confirms the Planck observation: even following a more accurate analysis (and the adoption of new instruments) there is still evidence of contaminants.

Posted: Feb 2nd, 2015

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'Live fast, die young' galaxies lose the gas that keeps them alive

Galaxies can die early because the gas they need to make new stars is suddenly ejected, research published today suggests. Most galaxies age slowly as they run out of raw materials needed for growth over billions of years. But a pilot study looking at galaxies that die young has found some might shoot out this gas early on, causing them to redden and kick the bucket prematurely.

Posted: Feb 2nd, 2015

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