Photos of the week: 1/29 - 2/5

This week's news headlines were dominated by the ongoing worldwide Zika virus epidemic, as well as the amping up of the 2016 United States presidential candidates' campaigning in Iowa and New Hampshire. We also saw severe weather in California and Arizona, rare Nacreous clouds in England, and former Turing Pharmaceuticals CEO Martin Shkreli appearing in court.

Click through the slideshow above to see scenes from all of these stories and more, and be sure to check back next weekend for our selection of the best photography from the next seven days.

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