Friday, July 26, 2013

ScienceDaily: Astronomy News

ScienceDaily: Astronomy News

Largest magnetic fields in the universe

Posted: 26 Jul 2013 01:34 AM PDT

Numerical simulations show for the first time the occurrence of an instability in the interior of neutron stars that can lead to gigantic magnetic fields, possibly triggering one of the most dramatic explosions observed in the Universe.

Centaurs: NASA's WISE finds mysterious centaurs may be comets

Posted: 25 Jul 2013 12:15 PM PDT

The true identity of centaurs, the small celestial bodies orbiting the sun between Jupiter and Neptune, is one of the enduring mysteries of astrophysics. Are they asteroids or comets? A new study of observations from NASA's Wide-field Infrared Survey Explorer (WISE) finds most centaurs are comets.

NASA's IRIS telescope offers first glimpse of sun's mysterious atmosphere

Posted: 25 Jul 2013 11:16 AM PDT

The moment when a telescope first opens its doors represents the culmination of years of work and planning -- while simultaneously laying the groundwork for a wealth of research and answers yet to come. It is a moment of excitement and perhaps even a little uncertainty. On July 17, 2013, the international team of scientists and engineers who supported and built NASA's Interface Region Imaging Spectrograph, or IRIS, all lived through that moment. As the spacecraft orbited around Earth, the door of the telescope opened to view the mysterious lowest layers of the sun's atmosphere and the results thus far are nothing short of amazing. The data is crisp and clear, showing unprecedented detail of this little-observed region.

Image of sun-approaching comet ISON

Posted: 25 Jul 2013 11:15 AM PDT

In this Hubble composite image taken in April 2013, the sun-approaching Comet ISON floats against a seemingly infinite backdrop of numerous galaxies and a handful of foreground stars.
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