After 15 years of crawling across the surface of Mars, NASA’s Jet Propulsion Laboratory (JPL) team sent the last-ever commands to its Opportunity rover today. The rover landed on Mars in 2004 for what started as a 90-day mission. It has since become the longest-running rover NASA has ever sent to Mars.
A vicious dust storm forced Opportunity into radio silence back in June — the fiercest Martian storm NASA had ever observed. Dust covering the rover’s solar panels caused it to drain its battery reserves. Now, a bitterly cold Martian winter means that Opportunity had virtually no chance of waking itself up.
Its last message home, according to science reporter Jacob Margolis: “My battery is low and it’s getting dark.”
A Successful Career
Opportunity allowed us to uncover a number of Mars’ secrets.
In 2004, the rover’s high-resolution images revealed the presence of hematite — a mineral that typically forms in water. In 2012, it found a patch of nearly pure silica that might have originated from a hot-spring-like environment. Clay minerals and veins of gypsum gave scientists even more evidence for the historical presence of water on Mars.
Demise on Mars
NASA will hold a press conference this afternoon to reveal the fate of its much-beloved rover.
May it rest in peace.
READ MORE: NASA is saying goodbye to its Opportunity rover on Mars after eight months of radio silence [The Verge]
More on Opportunity: NASA’s Opportunity Rover Feared Dead: “An Honorable Death”
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