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Black Holes grow, by eating stars
Tuesday, 03 April 2012 13:20
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Stars

Black hole

Most galaxies, including the Milky Way, have a supermassive black hole at their center weighing millions to billions of suns. But how do those black holes grow so hefty? Some theories suggest they were born large. Others claim they grew larger over time through black hole mergers, or by consuming huge amounts of gas. New research  shows that supermassive black holes can grow big by ripping apart double-star systems and swallowing one of the stars.

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Observing the universe when it was young
Monday, 02 April 2012 11:54
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Cosmology

baryon acoustic oscillations

A new survy has mapped the most accurate measurement yet of the distribution of galaxies between five and six billion years ago.

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Stars explode inside-out
Friday, 30 March 2012 14:54
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Stars

A new X-ray study of the remains of an exploded star indicates that the supernova that disrupted the massive star may have turned it inside out in the process.

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Discovery of 2 very old exoplanets
Thursday, 29 March 2012 10:41
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Exoplanets
A group of European astronomers has discovered an ancient planetary system that is likely to be a survivor from one of the earliest cosmic eras, 13 billion years ago. The system consists of the star HIP 11952 and two planets, which have orbital periods of 290 and 7 days, respectively.
 
Starbursts in early galaxies not caused by mergers
Thursday, 29 March 2012 10:34
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Galaxies

A study of galaxies in the deepest far-infrared image of the sky, obtained by the Herschel Space Observatory, highlights the two contrasting ways that stars formed in galaxies up to 12 billion years ago.

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