This Week in PNAS

Investigators at Duke University report in a PNAS paper published online in advance this week on their use of human artificial chromosome assembly assays, with which they show that "both D17Z1 and D17Z1-B can support de novo centromere assembly independently." This study, the authors say, illustrates the "presence of centromeric epialleles on an endogenous human chromosome" and points to the "genomic complexities underlying the mechanisms that determine centromere identity in h

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Mary Beckerle has been removed as director of the Huntsman Cancer Institute in what one researcher refers to as a "coup," ScienceInsider reports.

Bill Gates tells the Telegraph that bioterrorism is a serious risk.

The March for Science is to take place tomorrow, and supporters are tapping their creative energies to create placards to carry.

CBS News reports that the White House Science Fair is to continue under President Donald Trump.