NASA Katherine Johnson, pioneering NASA mathematician portrayed in "Hidden Figures," RIP David Pescovitz
Games In this tic-tac-toe variant played with all X's, the loser is actually the winner David Pescovitz
politics The Oligarch Game: use coin-tosses to demonstrate "winner take all" and its power to warp perceptions Cory Doctorow
happy mutants Do Not Erase: Jessica Wynne's beautiful photos of mathematicians' chalkboards Cory Doctorow
Science The weight of a kilogram changed overnight; the length of a second may be next David Pescovitz
human rights Math against crimes against humanity: Using rigorous statistics to prove genocide when the dead cannot speak for themselves Cory Doctorow