A sad message from NASA's InSight lander has recently made social media users cry, leaving some to question why they are so upset by the Mars rover.
On Monday, December 19, the InSight lander released a statement that read: "My power's really low, so this may be the last image I can send."
The lander has been on a mission to Mars to study its deep interior. However, a build-up of dust on its solar panels has caused it to slowly lose power.
