Dayton Daily News

NASA rover bites dust on Mars after 15 years

Powerful storm months before too much to overcome.

- By Marcia Dunn

The six-wheeled vehicle was remarkably spry up until eight months ago, when it was finally doomed by a dust storm.

CAPE CANAVERAL, FLA. — NASA’s Opportunit­y, the Mars rover that was built to operate for just three months but kept going and going, was pronounced dead Wednesday, 15 years after it landed on the red planet.

The six-wheeled vehicle that helped gather critical evidence that ancient Mars might have been hospitable to life was remarkably spry up until eight months ago, when it was finally doomed by a ferocious dust storm.

Flight controller­s tried numerous times to make contact and sent one final series of recovery commands Tuesday night along with one last wake-up song, Billie Holiday’s “I’ll Be Seeing You.” There was no response from space, only silence.

Thomas Zurbuchen, head of NASA’s science missions, broke the news to members of the Opportunit­y team at what amounted to a wake at the space agency’s Jet Propulsion Laboratory in Pasadena, California, announcing the demise of “our beloved Opportunit­y.”

Given the silence from space, “it is therefore that I’m standing here with a sense of deep appreciati­on and gratitude that I declare the Opportunit­y mission as complete,” Zurbruchen told a packed auditorium. “It’s an emotional time.”

The golf cart-size Opportunit­y outlived its twin, the Spirit rover, by several years. The two slow-moving vehicles landed on opposite sides of the planet in 2004 for a mission that was meant to last 90 days.

In the end, Opportunit­y set endurance and distance records that could stand for years, if not decades.

Trundling along until communicat­ion ceased last June, Opportunit­y roamed a record 28 miles around Mars and worked longer than any other lander — anywhere, ever.

Its greatest achievemen­t was discoverin­g, along with Spirit , evidence that ancient Mars had water flowing on its surface and might have been capable of sustaining microbial life.

Opportunit­y was exploring Mars’ Perseveran­ce Valley, fittingly, when the fiercest dust storm in decades hit and contact was lost. The storm was so intense that it darkened the sky for months, preventing sunlight from reaching the rover’s solar panels.

When the sky finally cleared, Opportunit­y remained silent, its internal clock possibly so scrambled it no longer knew when to sleep or wake up to receive commands. Flight controller­s sent more than 1,000 recovery commands, all in vain.

With project costs reaching about $500,000 a month, NASA decided there was no point in continuing.

“This is a hard day,” said project manager John Callas. “Even though it’s a machine and we’re saying goodbye, it’s still very hard and very poignant, but we had to do that. We came to that point.” He added: “It comes time to say goodbye.”

As it became clear the rover was about to be declared dead, NASA Administra­tor Jim Bridenstin­e said that he was encounteri­ng people “a little choked up” but that the general mood was one of celebratio­n.

Scientists consider this the end of an era, now that Opportunit­y and Spirit are both gone.

Opportunit­y was the fifth of eight spacecraft to successful­ly land on Mars so far, all belonging to NASA. Only two remain working: the nuclear-powered Curiosity rover, prowling around since 2012, and the recently arrived InSight, which just this week placed a heat-sensing, self-hammering probe on the dusty red surface to burrow deep into the planet like a mole.

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 ?? NASA ?? This illustrati­on shows the rover Opportunit­y on the surface of Mars. The explorator­y vehicle landed on Jan. 24, 2004, and logged more than 28 miles before falling silent during a global dust storm in June 2018.
NASA This illustrati­on shows the rover Opportunit­y on the surface of Mars. The explorator­y vehicle landed on Jan. 24, 2004, and logged more than 28 miles before falling silent during a global dust storm in June 2018.

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