07.23.2021 19:Jul PM EDT NASA InSight Offers First Glimpse of Mars; Molten Core: Seismometer Reveals More Mind Blowing Details of Red Planet’s Interior For the first time ever, scientists have mapped out a detailed image of Mars' inner layers. NASA's InSight revealed some surprising characteristics about the Red Planet's core. Photo : FREDERIC J. BROWN/AFP via Getty Images For the first time ever, scientists have mapped out a detailed image of Mars' inner layers. NASA's InSight revealed some surprising characteristics about the Red Planet's core. NASA InSight Mars Mission InSight is NASA's Mars lander designed to give the Red Planet "its first thorough check up," NASA explained. Short for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport, It is the first outer space robotic explorer to study the inner workings of Mars in depth.