Tessellations aren’t just eye-catching patterns—they can be used to crack complex mathematical problems. By repeatedly reflecting shapes to tile a surface, researchers uncovered a method that links ...

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Preview this article 1 min This Treasury-backed program's ...

Minnesota will start the new year with a paid leave law that took years to implement, launching a new benefit — and a new tax — for workers and employers. Political stakes are high for the success of ...

Turn your phone into a portable planetarium, map the night sky and discover the best place and time to observe February's solar eclipse, with the best stargazing apps. When you purchase through links ...