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

The answer has its roots in Portuguese, Dutch, and English sailors who needed a way to tell how fast they were going in an ...

Actress Donna Mills, 84, reveals a scary experience she had with a male stalker who had escaped prison. See details.

Donna Mills looked as ageless as ever during an outing with her close friends and fellow stars Alana Stewart, Morgan ...

Former Full House beauty Lori Loughlin dumped her fashion designer hubby, Mossimo Giannulli, after reportedly finding damning ...

Physicists show knotted cosmic strings may have dominated the early universe before collapsing to create matter—a theory ...

The White Mountain Apache Police Department identified remains that were found near Knots Landing on Nov. 3. The remains were ...