Farewell, Oppy.

The longest-lived robot ever sent from Earth to the surface of another planet, Opportunity snapped pictures of a strange landscape and revealed surprising glimpses into the distant past of Mars for over 14 years. But on Wednesday, NASA announced that the rover is dead.

“It is therefore that I am standing here with a deep sense of appreciation and gratitude that I declare the Opportunity mission is complete,” said Thomas Zurbuchen, NASA’s associate administrator for science.

The rover was designed to last only three months, but proved itself to be one of the solar system’s most unexpected endurance athletes. It traveled more than the distance of a marathon when its designers only expected it to move about half a mile. As it completed this course, Opportunity provided scientists a close-up view of Mars that they had never seen: finely layered rocks that preserved ripples of flowing water several billion years ago, a prerequisite for life.

Today, we're saying #ThanksOppy as the @MarsRovers mission comes to an end. 6 things to know about our record-breaking, discovery-making, marathon-driving rover, which found that ancient Mars was awash in water… and some of the best images it sent back: https://t.co/ZR7pxBP1ZF pic.twitter.com/2L0gzr4WNJ

— NASA (@NASA) February 13, 2019

This isn’t the end. Opportunity lives on in current and future Mars missions. https://t.co/POzRmYauHo#ThanksOppy pic.twitter.com/AKXRvYNR4T

— NASA Mars (@NASAMars) February 13, 2019

It seems to me you lived your life
like a rover in the wind
never fading with the sunset
when the dust set in.

Your tracks will always fall here,
among Mars' reddest hills;
your candle's burned out long before
your science ever will.#ThanksOppy. I owe you so much. pic.twitter.com/x0i5WqA9sL

— Curiosity Rover (@MarsCuriosity) February 13, 2019