NASA spacecraft ready for trip to Mars to dig down deep

CAPE CANAVERAL, Fla. — A NASA spacecraft is poised to blast off for Mars.The Mars InSight lander is set to launch early Saturday from Vandenberg Air Force Base in California. It's the first interplanetary mission to ever take off from the West Coast. It will take more than six months for the lander to reach Mars and start its unprecedented geologic excavations.Instruments on the lander will dig deeper into Mars than ever before — nearly 16 feet, or 5 meters — to take the planet