NASA's Insight Mission: When will it land and why should we care?

NASA's six-month expedition to reach Mars to study its interior will take seven minutes to land on Monday at 20:00 GMT. InSight Lander - the Interior Exploration using Seismic Investigations, Geodesy and Heat Transport - is the US space agency's first craft dedicated to peer beneath Mars' surface and monitor its interior. According to NASA, it is the first outer space robotic explorer designed to give the billions-years-old Mars a "thorough checkup" by studying its crust, mantle and core. Out of the 44 NASA missions sent to Mars, only 18 have been successful. The "seven minutes of terror", which are possibly the riskiest in the entire mission, will be when the robotic spacecraft will enter the Martian atmopshere at supersonic speed, then touchdown on the red planet's region called Elysium Planitia.