feb 052013
 
Massive Stellar Winds are Made of Tiny Pieces

  ESA’s XMM-Newton space observatory has completed the most detailed study ever of the fierce wind from a giant star, showing for the first time that it is not a uniform breeze but is fragmented into hundreds of thousands of pieces. Artist’s impression comparing a smooth stellar wind (left) with a highly fragmented stellar wind [continue reading]

jan 262013
 
Pulsar Acts Like a Chameleon

  An international team – led by Dutch astronomers (SRON, NOVA and ASTRON) – has made a tantalizing discovery about the way pulsars emit radiation. The emission of X-rays and radio waves by these pulsating neutron stars is able to change dramatically in seconds, simultaneously, in a way that cannot be explained with current theory. [continue reading]