'Deep impact' of pulsar around companion star

Astronomers have witnessed a never-seen-before event in observations by ESA's XMM-Newton spacecraft - a collision between a pulsar and a ring of gas around a neighbouring star.

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<p><a href="http://www.physorg.com/news11265.html">'Deep impact' of pulsar around companion star</a></p> <p>Astronomers have witnessed a never-seen-before event in observations by ESA's XMM-Newton spacecraft - a collision between a pulsar and a ring of gas around a neighbouring star.</p>