NASA's Mars-probe InSight spacecraft is halfway to the Red Planet

NASA might already have plenty of hardware on and around Mars -- it'll have one less if Opportunity never wakes back up -- but more is always better. That's why NASA launched the InSight spacecraft earlier this year. The new lander will touch down on the Red Planet later this year, and NASA just announced that it has successfully passed the halfway point in its journey to its new home. InSight is unlike any Mars mission before it. The lander is designed to listen, specifically to the rumblings g...