Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Axiom Space announced that it would be bringing home its private Axiom 4 (Ax-4) crew Cmdr. Peggy Whitson, pilot Shubhanshu Shukla, and mission specialists Tibor Kapu and Sławosz Uznański-Wiśniewski.

In liquid-bearing concrete structures, joints are where protective linings fail first. A monolithic film is asked to span a ...

Wisconsin Gov. Tony Evers announced July 24 that he will not be seeking a third term in the office he has held for six years, leaving state residents wondering who will step up to take his position in ...