Scientists measure how deep 'Deep Impact' was, with X-rays

Here come the X-rays, on cue. Scientists studying the Deep Impact collision using NASA's Swift satellite report that comet Tempel 1 is getting brighter and brighter in X-ray light with each passing day.

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<p><a href="http://www.physorg.com/news5042.html">Scientists measure how deep 'Deep Impact' was, with X-rays</a></p> <p>Here come the X-rays, on cue. Scientists studying the Deep Impact collision using NASA's Swift satellite report that comet Tempel 1 is getting brighter and brighter in X-ray light with each passing day.</p>