The X-ray outburst of a young, sunlike star may provide new insights about planet formation. The X-ray study dates to last January, when amateur astronomer Jay McNeill of Paducah, Ky., used a small telescope to discover a cloud of dust and gas in the Milky Way's Orion star-forming region. Other astronomers then found that a young sunlike star in the throes of a radiation-spewing tantrum had lit up the otherwise invisible cloud, dubbed McNeill's nebula.
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