A tetrahedron is the simplest Platonic solid. Mathematicians have now made one that’s stable only on one side, confirming a ...

A Russia-controlled module on the space station has been leaking for years. Now, operators are working to figure out if the ...

Solving life's great mysteries often requires detective work, using observed outcomes to determine their cause. For instance, ...

We consider the problem of minimizing costs over a dynamic, acyclic network with convex, separable link cost functions. The standard approach is to formulate the problem as a convex, separable ...