Humanitarian aid is essential following systemic violence and displacement, but it cannot build durable solutions on its own.

Add Yahoo as a preferred source to see more of our stories on Google. Workers prepare to burn imported plastic waste at a dump in East Java, Indonesia, in 2018. Ulet Ifansasti/Getty Images Picture a ...

Place any number of dots on a two-dimensional plane—say, a piece of paper—and measure the distance between each pair. If you rearrange the dots, how many pairs could be positioned exactly the same ...

Richard Feynman described a decision-making problem and its solution in handwritten notes, but the meaning of the notes has been a mystery for almost 50 y. We decipher the problem and solution from ...