{FD} Physicists determine ‘perfect pizza’ equation for golden crust and ‘mouth-watering bubbles of cheese’

If you’d like to eat the world’s most scientifically perfect pizza, you have two options: One, fly to Rome and order a Margherita pizza fresh from the brick oven; or, two, solve a long thermodynamic equation to simulate that glorious Italian pizza in your pathetic electric oven at home.

{FD} Eerie sky glow is ‘completely unknown’ to science

Late at night on July 25, 2016, a thin river of purple light slashed through the skies of northern Canada in an arc that seemed to stretch hundreds of miles into space. It was a magnificent, mysterious, borderline-miraculous sight, and the group of citizen skywatchers who witnessed it decided to give the phenomenon a fittingly majestic name: “Steve.”