And an intersection of squares
Today’s first puzzle was penned by Randall Munroe, cartoonist of the webcomic xkcd and author of the bestselling book What If?
For the (surely) very few readers who have never heard of him, Munroe, a former NASA roboticist, is probably the world’s premier science humorist.
More Stories
Elon Musk shows he still has the White House’s ear on Trump’s Middle East trip
Australians may soon be able to download iPhone apps from outside Apple App Store under federal proposal
Chris Hadfield: ‘Worst space chore? Fixing the toilet. It’s even worse when it’s weightless’