CubeSat buddies, like those sent to track Mars InSight landing, can be used in future missions

Plucky briefcase-size birds beamed back data pronto of Martian touchdown attempt
Vid Landing a spacecraft on Mars is nerve racking and prone to failure, as you can quite well imagine. But fear not, NASA was able to monitor the whole process for the InSight spacecraft thanks to two briefcase-sized CubeSats.…