Video: NROL-37 payload and Delta 4-Heavy rocket prepped for launch

United Launch Alliance’s final Delta 2 rocket is now on display at the Kennedy Space Center Visitor Complex in Florida, a monument to an industry workhorse that helped build the GPS navigation satellite fleet and enabled a new era of Mars exploration.

Working under the cloud of the global coronavirus pandemic, technicians and engineers at NASA’s Kennedy Space Center have installed a rotor-driven drone on the agency’s next Mars rover and fueled the spacecraft’s “sky crane” landing system in preparation for launch in July.

NASA officials have determined that the robotic InSight lander is ready for its mission to Mars after concluding that the probe should not suffer the same flaw that led to a crack in a heat shield undergoing tests for the space agency’s Mars 2020 rover, InSight’s chief scientist said Monday.