For SpaceUpClose.com & RocketSTEM CAPE CANAVERAL AIR FORCE STATION/KENNEDY SPACE CENTER, FL –  NASA’s $2.7 Billion Mars 2020 Perseverance Rover launched today on a 300 million mile (500 million km) interplanetary journey atop a powerful United Launch Alliance Atlas V rocket under picture perfect skies from the Florida Space Coast to the Red Planet where she will rove an ancient