Those who don't know the story the story was about a robot that nasa made... It was made in 2004, his name was opportunity... And he sended photos and secrets on Mars.... He was a true friend... However.... In 2018 his journey ended but he sang a song about his death.... He sang "my battery is getting low, it will soon be my time to go.... My screen is cracked... And I can't see.. And I just hope you are listening...... To my little rhymes... That I made for you... Somebody out there... Who cannot here my t-t-tune" and before a sand storm came and it covered the full planet.... And sun needed it most.... He lived for 15 years.... But died in the end... He was not just a friend... He was a legend.