geometry Why did this famous mathematician want a 17-sided shape on his tombstone? Ellsworth Toohey

Science Freeman Dyson as remembered by Tim O'Reilly David Pescovitz

NASA Katherine Johnson, pioneering NASA mathematician portrayed in "Hidden Figures," RIP David Pescovitz

Science Two twisty doughnut shapes solve a 150-year-old geometry puzzle Ellsworth Toohey

math Half a century of math mystery finally meets Baek Jin-eon Jason Weisberger

Science Mathematicians say they've proven the universe can't be a simulation Ellsworth Toohey

In new book, math professor reveals hidden math in Shakespeare, Radiohead, and Pixar Ellsworth Toohey

Science When 1+1 doesn't equal 2: new book reveals why traditional concepts of equality are holding us back from creating a fairer world Ellsworth Toohey

art Tailor drew chalk portraits on fabric Rob Beschizza

Science Research finds sex dolls exceed natural human proportions by up to 52% Ellsworth Toohey

Science Pyramidal object always corrects itself Rob Beschizza

Funny Your body is just a giant sack of sidewalk chalk, says creepy video Popkin

Science Anonymous anime fan solves complex superpermutation puzzle on 4chan Ellsworth Toohey

Science Mathematicians discover the ideal body shape for hula hooping Gail Sherman

Two mathematicians just solved a centuries-old prime number puzzle that experts thought impossible Ellsworth Toohey

local culture Remote desert town's bizarre welcome sign leaves mathematicians scratching their heads Ellsworth Toohey

statistics A comprehensive statistical analysis of Six Degrees of Kevin Bacon Thom Dunn

Monkey unable to type all of Hamlet before the universe ends but could type "bananas" before it dies Allan Rose Hill

Space NASA's "Hidden Figures" awarded Congressional Gold Medals Rob Beschizza

Science Scientists discover weird new kind of shape found in nature Allan Rose Hill