The Largest Star Known is Tearing Itself Apart

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An international team of astronomers has observed part of the final death throes of the largest known star in the Universe as it throws off its outer layers. The discovery, by a collaboration of scientists from the UK, Chile, Germany, and the US, is a vital step in understanding how massive stars return enriched material to the interstellar medium — the space between stars — which is necessary for forming planetary systems.

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Black hole’s powerful jets blow material out of galaxy

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By NRAO, Socorro, New Mexico — Published: September 5, 2013

Astronomers using a worldwide network of radio telescopes have found strong evidence that a powerful jet of material propelled to nearly light speed by a galaxy’s central black hole is blowing massive amounts of gas out of the galaxy. This process, they said, is limiting the growth of the black hole and the rate of star formation in the galaxy, and thus is a key to understanding how galaxies develop.

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NASA evaluates four candidate sites for 2016 Mars mission

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By NASA/JPL — Published: September 5, 2013

NASA has narrowed to four the number of potential landing sites for the agency’s next mission to the surface of Mars, a 2016 lander to study the planet’s interior.

The stationary Interior Exploration Using Seismic Investigations, Geodesy, and Heat Transport (InSight) lander is scheduled to launch in March 2016 and land on Mars six months later. It will touch down at one of four sites selected in August from a field of 22 candidates. All four semifinalist spots lie near each other on an equatorial plain in an area of Mars called Elysium Planitia.

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Bright nova in Delphinus

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BY KEITH COOPER

“The possible new nova is located in Delphinus alongside the familiar Summer Triangle outlined by Deneb, Vega and Altair. This may shows the sky looking high in the south for mid-northern latitudes around 10 p.m. in mid-August.”
A new nova has appeared in the constellation Delphinus. Currently estimated to be at magnitude +6, it is possible that the nova could brighten even further to become visible to the naked eye in dark skies.

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