NASA has declared its Mars rover Opportunity dead after 15 years on the red planet.
Opportunity fell silent eight months ago during a dust storm and despite more than 1000 attempts to communicate with it, there has been no response.
“I was there yesterday and I was there wth the team as these commands went out into the deep sky, and I learned this morning that we had not heard back,” Thomas Zurbuchen, associate administrator of NASA’s Science Mission Directorate, told reporters, NBC reported. “Opportunity remains silent.”
“I declare the Opportuniy mission as complete,” he said.
Opportunity landed on Mars on January 25, 2004.
It was only meant to be deployed for a 90-day mission but proved to be particularly robust.
During its years of intrepid exploration across Mars it advanced human knowledge by confirming that water once flowed on the red planet.
Unable to recharge its batteries, Opportunity left hundreds of messages from Earth unanswered over the months, and NASA said it made its last attempt at contact Tuesday evening.
The community of researchers and engineers involved in the program were in mourning over the passing of the rover, known affectionately as Oppy.
“Spent the evening at JPL as the last ever commands were sent to the Opportunity rover on #Mars,” Tanya Harrison, director of Martian research at Arizona State University, tweeted after a stint at Pasadena’s Jet Propulsion Laboratory.
“There was silence. There were tears. There were hugs. There were memories and laughs shared. #ThankYouOppy #GoodnightOppy,” she wrote.
The nostalgia extended across the generations of scientists who have handled the plucky little adventurer.
“Godspeed, Opportunity,” tweeted Keri Bean, who had the “privilege” of sending the final message to the robot.
“Hail to the Queen of Mars,” added Mike Seibert, Opportunity’s former flight director and rover driver, in another tweet while Frank Hartman, who piloted Oppy, told AFP he felt “greatly honoured to have been a small part of it.” “Engulfed by a giant planet-encircling dust storm: Is there a more fitting end for a mission as perfect and courageous from start to finish as Opportunity?” he said.
The program has had an extraordinary record of success: 45.2 kilometres traversed, more than the Soviet Union’s Lunokhod 2 moon rover during the 1970s and more than the rover that US astronauts took to the moon on the Apollo 17 mission in 1972.
Opportunity sent back 217,594 images from Mars, all of which were made available on the internet.
“For the public the big change was that Mars became a dynamic place, and it was a place that you could explore every day,” Emily Lakdawalla, an expert on space exploration and senior editor at The Planetary Society.
“The fact that this rover was so mobile, it seemed like an animate creature,” she said. “Plus it has this perspective on the Martian surface that’s very human-like.” “It really felt like an avatar for humanity traveling across the surface,” she added.
Opportunity landed on an immense plain, and spent half its life there, traversing flat expanses and once getting stuck in a sand dune for several weeks. It was there, using geological instruments, that it confirmed that liquid water was once present on Mars.
During the second part of its life on Mars, Opportunity climbed to the edge of the crater Endeavour, taking spectacular panoramic images – and discovering veins of gypsum, additional proof that water once flowed among the Martian rocks.
Opportunity’s twin, Spirit, landed three weeks ahead of it, and was active until it expired in 2010. The two far exceeded the goals of their creators: In theory, their missions were supposed to last 90 days.
Today, only a single rover is still active on Mars, Curiosity, which arrived in 2012. It is powered not by the sun, but by a small nuclear reactor.
In 2021, the recently named Rosalind Franklin robot, part of the European-Russian ExoMars mission, is slated to land on a different part of the planet, raising the population of active rovers to two.