The mission will study the interior of Mars
The NASA Insight landing module is now on its way to Mars, where it will land in November 2018 for a unique mission: to study the interior of the red planet. Hopefully, you will gain new insights into how Mars could be when you were younger, and give us an idea of how other rocky planets might have formed.
Originally, the lander was scheduled for launch in 2016, but was delayed until May 2018. Once it lands, it will measure the marsquakes: rumors in the planet's crust caused by contractions as the planet cools . This information will tell us a little more about the composition of the planet and could give us a good idea of what the planet would look like when it was younger.
It is accompanied by a pair of small satellites, MarCO-A and MarCO-B, which will serve as an experimental communications relay network for InSight when it lands later this year. They will try to send information to the Mars Reconnaissance Orbiter of NASA, which is already in orbit around the planet, which in turn will transmit the information to Earth.
