The Institute of Contemporary Art/Boston - Look up #OnThisDay for the winter solstice, the shortest period of daylight in the Northern Hemisphere—and maybe you'll find something unexpected. In "Untitled (Reaper Drone)" by
![Untitled (Reaper Drone),” 2010. © Trevor Paglen/Mildred Lane Kemper Art Museum, Washington University in St. Louis. University purchase, Bixby Fund | PDN Photo of the Day Untitled (Reaper Drone),” 2010. © Trevor Paglen/Mildred Lane Kemper Art Museum, Washington University in St. Louis. University purchase, Bixby Fund | PDN Photo of the Day](https://potd.pdnonline.com/wp-content/uploads/2016/04/04-Picks-Drone-Warfare-Trevor-Paglen-2012-0001-m-crop.jpg)
Untitled (Reaper Drone),” 2010. © Trevor Paglen/Mildred Lane Kemper Art Museum, Washington University in St. Louis. University purchase, Bixby Fund | PDN Photo of the Day
![Trevor Paglen on Twitter: ""Sentinel" drone (RQ-170) seen in Nevada a few weeks ago - didn't realize these things were flying out in the open... http://t.co/gG5p8heTCY" / Twitter Trevor Paglen on Twitter: ""Sentinel" drone (RQ-170) seen in Nevada a few weeks ago - didn't realize these things were flying out in the open... http://t.co/gG5p8heTCY" / Twitter](https://pbs.twimg.com/media/BVGSl7TCEAElNw7.jpg:large)