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astrophysics, cosmology, the universe...

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Farthest galaxy detected

A team of researchers that has spent years searching for the earliest objects in the universe now reports the detection of what may be the most distant galaxy ever found. They describe evidence for a galaxy called EGS8p7 that is more than 13.2 billion years old.

Posted: Sep 3rd, 2015

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Cosmic recycling

Dominating this image is part of the nebula Gum 56, illuminated by the hot bright young stars that were born within it. For millions of years stars have been created out of the gas in this nebula, material which is later returned to the stellar nursery when the aging stars either expel their material into space or eject it as supernova explosions.

Posted: Sep 2nd, 2015

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Distant planet's interior chemistry may differ from our own

As astronomers continue finding new rocky planets around distant stars, high-pressure physicists are considering what the interiors of those planets might be like and how their chemistry could differ from that found on Earth. New work demonstrates that different magnesium compounds could be abundant inside other planets as compared to Earth.

Posted: Sep 1st, 2015

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How to get rid of a satellite after its retirement

Researchers have developed a new method to eliminate artificial satellites in Highly Elliptical Orbits when they finish their mission. The methodology, which allows for a reduction of both cost and risk, has been tested with the European Space Agency INTEGRAL mission, which will re-enter into the Earth's atmosphere in order to disintegrate in 2029.

Posted: Sep 1st, 2015

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Ceres close up

Just arrived in a new orbit: from an altitude of only 1470 kilometres, the Dawn space probe is now gazing at the dwarf planet Ceres.

Posted: Aug 27th, 2015

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Interstellar seeds could create oases of life

New research by astrophysicists shows that if life can travel between the stars (a process called panspermia), it would spread in a characteristic pattern that we could potentially identify.

Posted: Aug 27th, 2015

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Discovering dust-obscured active galaxies as they grow

Astronomers performed an extensive search for Dust Obscured Galaxies (DOGs) using data obtained from the Subaru Strategic Program with Hyper Suprime-Cam (HSC). The research group discovered 48 DOGs, and has measured how common they are. Since DOGs are thought to harbor a rapidly growing black hole in their centers, these results give us clues for understanding the evolution of galaxies and supermassive black holes.

Posted: Aug 27th, 2015

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A new approach towards solving mysteries of the interstellar medium

It is one of the most intriguing questions in astrochemistry: the mystery of the diffuse interstellar bands (DIBs), a collection of about 400 absorption bands that show up in spectra of light that reaches the earth after having traversed the interstellar medium. Despite intense research efforts over the last few decades, an assignment of the DIBs has remained elusive, although indications exist that they may arise from the presence of large hydrocarbon molecules in interstellar space. Recent experiments lend novel credibility to this hypothesis.

Posted: Aug 21st, 2015

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