astronomy

What to expect from Comet PANSTARRS in February

Comet-finder-chartAs Comet PANSTARRS makes its first trip through the inner solar system, it could brighten to naked-eye visibility late in February for observers in the Southern Hemisphere. // Astronomy: Roen Kelly Southern-sky viewers have all the luck this month. By Michael E. Bakich — Published: January 31, 2013 As February opens, Comet PANSTARRS (C/2011 L4) …

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Space instrument adds big piece to the solar corona puzzle

This is one of the highest-resolution images ever taken of the solar corona, or outer atmosphere. It was captured by NASA’s High Resolution Coronal Imager (Hi-C) in the ultraviolet wavelength of 19.3 nanometers. Hi-C showed that the Sun is dynamic, with magnetic fields constantly warping, twisting, and colliding in bursts of energy. Added together, those …

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Baffling pulsar leaves astronomers in the dark

Artist’s impression of a pulsar in radio-bright mode. // Credit: ESA/ATG medialab Scientists have found that this object, whose radio emission is known to switch on and off periodically, exhibits the same behavior, but in reverse, when observed at X-ray wavelengths. By ESA, Noordwijk, Netherlands — Published: January 25, 2013 New observations of a highly …

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Telescopes find evidence for asteroid belt around Vega

The data are consistent with the star having an inner warm belt and outer cool belt separated by a gap. By Jet Propulsion Laboratory, Pasadena, California, NASA Headquarters, Washington, D.C. — Published: January 9, 2013   This artist’s concept illustrates an asteroid belt around the bright star Vega. // Credit: NASA/JPL-Caltech Astronomers have discovered what …

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Texas Astronomers Measure Most Massive, Most Unusual Black Hole Using Hobby-Eberly Telescope

This image of NGC 1277 was taken with Hubble Space Telescope. This small, flattened galaxy contains one of the most massive central black holes ever found. At 17 billion solar masses, the black hole weighs an extraordinary 14% of the total galaxy mass. [NASA/ESA/Andrew C. Fabian] 28 November 2012 – Mcdonald Observatory news Fort Davis, …

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