In June of 2018 the Mars rover, Opportunity, was caught in the middle of an increasingly bad dust storm. The storm blocked out the sun leaving Opportunity in complete darkness.
Despite hundreds of recovery commands sent to the rover, NASA was unable to reach Opportunity.
On February 13, 2019, after eight months without a response, NASA officially anounced Opportunity's mission complete.
News of the "death" of Opportunity spread across social media with thousands of people mourning the loss of the rover.
