The development of science and technology is something that keeps blowing our minds. NASA’s latest innovation is an instrument called the Soil Moisture Active Passive (SMAP). The invention will be launched on January 29th and it is meant to measure Earth’s soil moisture with a very high accuracy and resolution.
NASA’s instrument is made out of three “devices”, a radar, a radiometer and the biggest rotating mesh antenna ever sent out in space. The remote sensors are active when they emit their own signal and passive when recording signals that already exist.