The loneliest robot in the universe - 'real-life WALL-E': 15 years wandering in endless space.

But unlike WALL-E, Oppy, the 'loneliest robot in the universe,' hasn't even found his EVE yet .

On February 13, 2019, NASA (National Aeronautics and Space Administration) decided to switch off Opportunity, a rover that had been on Mars for fifteen years, after engineers at the Jet Propulsion Laboratory sent more than a thousand signals to revive it following a severe dust storm.

When a project has to end, most people's first thought is that it was unsuccessful or a failure. But it was different for the little six-wheeled robot with the bright name Opportunity, affectionately nicknamed Oppy by NASA engineers. Its death was rewarded as if the mission had been successful.

A 15-year journey wandering alone in space.

Opportunity landed on Meridiani Planum, a plain south of the Martian equator, on January 25, 2004. It followed its twin rover, Spirit, which had arrived on the other side of the planet just three weeks earlier. The two rovers were designed to undertake a 90-day Martian adventure (approximately 92 Earth days) and travel no more than one kilometer. The first rover, Spirit, operated successfully for over five years, recording a driving distance of 7.73 km until it became stuck in soft ground at an angle, preventing it from recharging its solar panels.

The opportunity was supposed to last only 3 months, but he persevered for 15 years until the very end.

Spirit 's twin, however , embarked on an even more spectacular journey, exceeding everyone's expectations at the start of its mission. Oppy continued exploring the surface of the Red Planet for 15 Earth years. It traveled over 45 kilometers, a record for our wheeled alien spacecraft.

Oppy arrived with evidence suggesting that years ago, Mars was wetter and warmer than it is now. It returned over 217,000 images of the Martian surface and even took a self-portrait. Oppy visited several locations on the Martian surface, starting at Eagle Crater in 2004 and then moving to a discarded heat shield that had fallen near Endurance Crater. It survived Purgatory Dune, where it became stuck in a sand dune for a month, and spent two years collecting data around the edges of Victoria Crater.

One of the most remarkable discoveries of the 'loneliest robot in the universe' occurred in Endeavour Crater when Oppy found several deposits and minerals. These rocks allowed scientists to hypothesize that liquid water was present on Mars billions of years ago and was potentially drinkable with a neutral pH. Oppy accomplished all of this by continuously recharging its solar batteries, entering hibernation whenever dust storms raged, and resuming operation when the weather cleared.

It continued its southward journey for many years, surviving numerous dust storms as it moved across the Martian surface.

For those 15 long years, Oppy was all alone. And as a reminder that there were still many people on Earth watching over it day and night, NASA engineers installed a special program on Oppy to play music. These songs served to "wake" Oppy up to work each day and to let it know that it wasn't completely alone.

The mission control team at NASA's Jet Propulsion Laboratory sent the final commands to the "robot geologist" Oppy on February 12, 2019.

Finally, in July 2017, Oppy reached the Valley of Perseverance, unbeknownst to anyone, it turned out to be its final resting place. A year later, it entered an epic battle with a massive, planet-scale dust storm engulfing Mars. Unfortunately, the storm plunged the planet into darkness, dust, and wind, leaving the tiny robot with no chance of survival.

Oppy's last message to Earth was: "My battery is running low and it's getting dark." At Oppy's farewell, Billie Holiday's song "I'll Be Seeing You" was played .

Because of Oppy's unique story, the media dubbed it 'the loneliest robot in the universe ,' reminding people of Wall-E from the famous Disney movie. However, unlike Wall-E, Oppy never even found its own Eve. It continues its solitary journey through the Red Planet, diligently and tirelessly carrying out its assigned mission.

Oppy has been dubbed by the media as 'the loneliest robot in the universe'.

The inspiring story of 'the loneliest robot in the universe' 

The sacrifice of the solitary rover opened up countless new opportunities for space science and humanity's exploration of the vastness of space. It left behind a legacy. First and foremost, Oppy inspired thousands of people around the world. Witnessing the story of this famous rover, thousands of young students decided to pursue careers in space science. The rover proved that we can build capable spacecraft and offered hope that humanity can embark on even more ambitious projects than Oppy.

Oppy spotted the Endeavour crater on Mars on March 9, 2012.

These simulated images show what NASA's Oppy probe saw when a global dust storm on Mars obscured the Sun in 2018, when it stopped communicating with Earth.

The monstrous dust storm ended Oppy's adventure, but it didn't end many opportunities to explore Mars. The car-sized Curiosity rover has been exploring Gale Crater since 2012, investigating the planet's climate, potential microbial life on Mars, and its habitability.

NASA's InSight lander arrived at Mars on November 26, 2018, and began investigating the Red Planet. Unlike Opportunity and Curiosity, it would not wander the surface but instead explore the planet's interior by measuring seismic activity and internal heat flow. Eventually, NASA launched two more rovers in July 2020 – Mars 2020 and Rosalind Franklin. Both were designed to search for signs of life on Mars.

The robot Opportunity was officially declared dead on February 13, 2019. However, the end of Oppy is the beginning of hope for humanity that one day brave astronauts will surpass our expectations – just as this tiny rover did – and will leave their footprints on the surface of Mars, heralding the start of boundless exploration.

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