CAPE CANAVERAL, Fla. (AP) — A NASA spacecraft has landed on Mars to explore the planet's interior.Flight controllers announced that the spacecraft InSight touched down Monday, after a perilous supersonic descent through the red Martian skies. Confirmation came via radio signals that took more than eight minutes to cross the nearly 100 million miles (160 million kilometers) between Mars and Earth.There was no immediate word on whether the lander was in good working [...]