<p>Amateur astronomer Alex Cherney captured these star trails as they blazed above Lake Tyrrell, a salt lake in Victoria, <a href="http://travel.nationalgeographic.com/travel/countries/australia-guide/">Australia</a>,&nbsp;in October 2011 and posted to The World At Night website December 25, 2012.</p><p>(See <a href="http://ngm.nationalgeographic.com/2011/09/photo-journal/fredericks-photography#/01-salt-flats-670.jpg">pictures of another Australian salt lake, Lake Eyre</a>.)</p>

Happy Trails

Amateur astronomer Alex Cherney captured these star trails as they blazed above Lake Tyrrell, a salt lake in Victoria, Australia, in October 2011 and posted to The World At Night website December 25, 2012.

(See pictures of another Australian salt lake, Lake Eyre.)

Photograph by Alex Cherney, TWAN

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Star trails streak over a salt lake, ice blooms into "broccoli," and the sun sets off sparks in this week's best space pictures.

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