How explorers found Amelia Earhart’s watery grave. Or did they?

After nearly 100 days at sea, the crew had given up. Since early September, they had logged nearly 12,000 miles aboard the Offshore Surveyor, crisscrossing the equator near the 180th meridian. Now a few days past Thanksgiving, the time had come to move on.

They had worked hard under a tropical sun, days becoming weeks, a familiar routine offloading their unmanned submersible and watching as its sonar became their eyes on the ocean floor, recording all that it saw.

There’d been hiccups along the way. Crew had gotten sick. The underwater camera had broken, and after one dive, the data had come back presumably corrupted.

But the team of Deep Sea Vision hadn’t let any of that get in the way. They were out to solve the greatest aviation mystery of all: the disappearance of Amelia Earhart on July 2, 1937, during her epic flight around the world.

Never mind that over the years others had tried in vain to find some evidence of her fate: a faded photograph perhaps, a long-lost letter, some scraps of her plane.

Deep Sea Vision’s chief executive officer, Tony Romeo, a former real estate entrepreneur out of Charleston, South Carolina, had a plan.

He had studied the maps, read the history and come up with the money to try to prove that Earhart and her navigator, Fred Noonan, had miscalculated their location, run out of gas and perished after ditching their plane in the middle of the Pacific Ocean.

Proof would be the watery grave of Earhart’s twin-engine Lockheed Electra.

But by early December, Deep Sea Vision had nothing. Steaming away from their hopes toward their next destination, American Samoa, Romeo tried not to be too discouraged. He was having dinner with his crew, and the sun was setting on another beautiful day at sea.

Soon he would be with his family, sharing stories of this adventure and being teased for the beard he had grown while away. As for Earhart? Well, who knows? Maybe she had been abducted by aliens after all.

Then he heard someone calling. Craig Wallace, chief of operations, poked his head into the galley.

“Hey, you guys have to take a look at this.”

Not another technical glitch, Romeo thought.

•••

She flew east to meet the dawn and never returned. Yet in death, Amelia Earhart is still with us. Aviator, feminist, adventurer, who rose to dizzying heights of celebrity in the 1930s, she was to her American moment what Taylor Swift is to ours.

Her stage was the sky, and her songs the records she set: first as a woman, flying alone across the Atlantic and nonstop across the United States; then among all others, flying alone from Hawaii to California and from Los Angeles to Mexico City and then to New Jersey.

“She represents freedom, dreaming big, adventurousness, seeking out the unknown,” said Jane Mendelsohn, who captured the heroine’s complicated mystique in a novel, “I Was Amelia Earhart.”

Earhart first earned her wings above the open fields of Los Angeles, wowing weekend crowds at airshows with her youth, her elegance and daring. The 1920s had found a superstar, who with her tousled hair, leather jacket, scarf and khakis, buoyed the world through the Depression.

She had long dreamed of circumnavigating the globe, a “shining adventure,” as she wrote, “perhaps encouraging other women toward greater independence of thought and action.” She began her journey on May 20, flying out of Oakland, with Burbank her first overnight.

Her final radio transmissions two months later en route to a critical fuel stop, Howland Island — but a speck in the middle of the Pacific — still haunt:

We must be on you but cannot see you — but gas is running low — have been unable to reach you by radio — we are flying at 1,000 feet. For six days, she was a banner headline in the New York Times, all shock and disbelief. She was 39 years old.

“It’s the perfect riddle. It has just enough information to get you excited and not quite enough to get it solved,” said Romeo, 43, whose obsession with Earhart dates to childhood.

His father, a commercial airline pilot, set the hook with tales of her adventures. When Romeo was in fifth grade, he and a friend performed in a school skit, dramatizing a page from her life. The friend played a reporter and Romeo played Earhart, just before she vanished.

We live in an age where two truths are inescapable: The past is never past, and popular culture abhors a vacuum. Since disappearing, Earhart keeps surfacing, born aloft on wild postulations from a cottage industry staffed with history buffs, aviation nerds and undersea explorers.

Some say she survived: that the Japanese rescued her and Noonan; that she was taken to Saipan to broadcast Tokyo Rose-like pronouncements during the war; or that she lived far from the spotlight of fame as a housewife in New Jersey.

Years later when a shred of aircraft aluminum and the rubber heel from a woman’s shoe were found on an island 400 miles from Earhart’s destination, she was imagined to have been a castaway.

Still other searchers argue that she perished after running out of gas and landing on water. Millions of dollars have been spent combing the depths for her Electra, to no avail.

•••

Romeo followed Wallace up the stairs to the forecastle. The Offshore Surveyor, a 110-foot research vessel, was a charter out of Papua New Guinea, and its bridge had a long settee and a table where the crew had set up a bank of computer monitors for tracking the submersible and assessing its findings.

Wallace went to his computer. He had been organizing the data and came across the file from Oct. 8 — Day 32 at sea — which they hadn’t initially been able to open. They presumed it was corrupted.

Other members of the expedition joined them. They had been called to the computer many times before to look at suspicious objects that ultimately didn’t match the Electra’s dimensions.

From the start, their submersible — a $9-million Hugin 6000 — had performed exceptionally well, running untethered for 36-hour stretches about three miles beneath them. They named it Miss Millie Pollywog, a portmanteau of Earhart’s nickname and sailor’s slang for someone who hasn’t crossed the Equator.

Nothing escaped its Doppler, its magnetometer, echo sounder and side scan sonar as it stored hours of imagery on a 10-terabyte hard drive that gave Wallace and Romeo the experience of soaring 50 feet above the ocean floor.

The crew crowded around Wallace. He’d been able to recover the data they thought had been lost.

They had put to sea three months before at a cost of around $15,000 a day. Six of them operated the vessel. Nine others, including a producer and camera operator, were Romeo’s crew for a documentary with the working title: “Why Not Us?”

“Why can’t six random guys solve aviation’s greatest riddle?” said Romeo. “We’re no Robert Ballards. We’re no James Camerons. We’re just six guys who love the story and put together a business to solve it.”

Wallace hit play.

•••

Romeo got the idea to search for Earhart when he and his son were magnet fishing the Charleston waterways during the pandemic, recovering random pieces of metal from the shallows, a pastime they had read about in the Wall Street Journal.

After retrieving so much fishing gear, Romeo wondered if a string of powerful magnets could pull up something bigger, like a sunken plane. He bounced the idea off his brother Lloyd, a pilot who lives in Temecula. They both agreed it was crazy.

But Romeo shifted his focus to autonomous underwater vehicles and sonar, which are prohibitively expensive. But at the time, he was selling his business.

With interest rates and inflation rising — and the office market falling — he knew he had to pivot. Since retiring from the Air Force in 2008, he had been moving fast — first creating and selling a residential real estate app, then managing commercial properties — and he was ready to get out.

So he bought a fancy Norwegian submersible for $9 million, learned how it worked, set aside another $2 million for the expedition and said goodbye to his wife and two children before taking off for the South Pacific, armed with the idea that Noonan hadn’t calculated a critical variable in longitude when they crossed the International Date Line on their way to Howland Island.

The theory had seemed plausible.

But after coming up with nothing, he wasn’t so sure.

•••

Wallace clicked the mouse, and the image on the monitor began to move.

The ocean floor on Day 32 came to life as a grainy black and yellow image scrolling down the screen like the credit roll at the end of a movie.

Wallace adjusted for brightness. He had applied filters that sorted for objects with straight lines and the same dimensions as the Lockheed Electra.

A brighter yellow shape emerged as a cross. The image was marred by interference. The submersible had caught it at a distance of about 750 feet.

Wallace froze the screen.

“Holy s—,” Romeo said.

There it was. He could even make out what he thought were the twin vertical stabilizers on the tail.

He felt a chill, not quite goosebumps, just the awareness, surreal actually, that this was the plane, seen for the first time since 1937.

Wallace replayed the image, and the crew began to talk. They knew that sonar can distort and that the mind can see what it wants, and still they needed to take precautions.

They had a checklist for just this moment, and the first step was to shut down the ship’s Starlink satellite connection. They wanted no one aboard to send or receive messages.

The confidentiality of their discovery — and its location — was paramount.

•••

Hypnotized by the image, Romeo felt a pang of regret.

They had had it all along, 68 days earlier, if only they had taken the time to retrieve the file.

But he realized that the delay played to their advantage. The coordinates of Earhart’s plane were miles behind them. No one would be able to retrace their course.

He relaxed. The news would get out eventually, so the team decided to scrub the image of sensitive data and release it.

Wallace grabbed a bottle of whiskey, vintage 1937, the year Earhart disappeared. A toast seemed in order. But they held back. The Pacific was a graveyard of lost planes, and they wanted undeniable confirmation.

“Of course, it could be another aircraft. Until this is confirmed, skepticism is fair and needed,” said Romeo, who hopes to provide the ending to this chapter of history.

“It is a story that needs closure,” he said.