Story highlights "Every day it just seems like it's an eternity," passenger's wife says

Chinese agency: The satellite found "three suspected floating objects"

Flight 370 went missing early Saturday; massive area is being searched

"There's so much confusing information," a commercial pilot says

A Chinese satellite probing the mysterious disappearance of Malaysia Airlines Flight 370 "observed a suspected crash area at sea," a Chinese government agency said -- a potentially pivotal lead into what thus far has been a frustrating, fruitless search.

China's State Administration for Science, Technology and Industry for National Defense announced the discovery, including images of what it said were "three suspected floating objects."

The objects aren't small: 13 by 18 meters (43 by 59 feet), 14 by 19 meters (46 by 62 feet) and 24 by 22 meters (79 feet by 72 feet). For reference, the wingspan of an intact Boeing 777-200ER like the one that disappeared is about 61 meters (200 feet), and the plane's overall length is about 64 meters (210 feet).

The images were captured around 11 a.m. on March 9, the day after the plane went missing, but weren't released until Wednesday.

The Chinese agency gave coordinates of 105.63 east longitude, 6.7 north latitude, which would put it in waters northeast of where it took off in Kuala Lumpur, Malaysia, and south of Vietnam, near where the South China Sea meets the Gulf of Thailand.

"It's where it's supposed to be," Peter Goelz, a former National Transportation Safety Board managing director, told CNN's Jake Tapper, noting the "great skepticism" about reports the plane had turned around to go back over Malaysia. "I think they've got to get vessels and aircraft there as quickly as humanly possible."

Photos: The search for MH370 Photos: The search for MH370 Two years after Malaysia Airlines Flight 370 went missing, a relative of one of the passengers burns incense in Beijing on March 8, 2016. Flight 370 vanished on March 8, 2014, as it flew from Kuala Lumpur, Malaysia, to Beijing. There were 239 people on board. Hide Caption 1 of 43 Photos: The search for MH370 On July 29, police carry a piece of debris on Reunion Island, a French territory in the Indian Ocean. A week later, authorities confirmed that the debris was from the missing flight. Hide Caption 2 of 43 Photos: The search for MH370 Staff members with the Australian Transport Safety Bureau examine a piece of aircraft debris at their laboratory in Canberra, Australia, on July 20. The flap was found in June by residents on Pemba Island off the coast of Tanzania, and officials had said it was highly likely to have come from Flight 370. Experts at the Australian Transport Safety Bureau, which is heading up the search for the plane, confirmed that the part was indeed from the missing aircraft. Hide Caption 3 of 43 Photos: The search for MH370 In late February, American tourist Blaine Gibson found a piece of plane debris off Mozambique, a discovery that renewed hope of solving the mystery of the missing flight. The piece measured 35 inches by 22 inches. A U.S. official said it was likely the wreckage came from a Boeing 777, which MH370 was. Hide Caption 4 of 43 Photos: The search for MH370 Relatives of the flight's passengers console each other outside the Malaysia Airlines office in Subang, Malaysia, on February 12, 2015. Protesters had demanded that the airline withdraw the statement that all 239 people aboard the plane were dead. Hide Caption 5 of 43 Photos: The search for MH370 A police officer watches a couple cry outside the airline's office building in Beijing after officials refused to meet with them on June 11, 2014. The couple's son was on the plane. Hide Caption 6 of 43 Photos: The search for MH370 Members of the media scramble to speak with Azharuddin Abdul Rahman, director general of Malaysia's Civil Aviation Department, at a hotel in Kuala Lumpur, Malaysia, on May 27, 2014. Data from communications between satellites and the missing flight was released the day before, more than two months after relatives of passengers said they requested it be made public. Hide Caption 7 of 43 Photos: The search for MH370 Operators aboard the Australian ship Ocean Shield move Bluefin-21, the U.S. Navy's autonomous underwater vehicle, into position to search for the jet on April 14, 2014. Hide Caption 8 of 43 Photos: The search for MH370 A member of the Royal New Zealand Air Force looks out of a window while searching for debris off the coast of western Australia on April 13, 2014. Hide Caption 9 of 43 Photos: The search for MH370 The HMS Echo, a vessel with the British Roya; Navy, moves through the waters of the southern Indian Ocean on April 12, 2014. Hide Caption 10 of 43 Photos: The search for MH370 A Royal Australian Air Force AP-3C Orion, on a mission to drop sonar buoys to assist in the search, flies past the Australian vessel Ocean Shield on April 9, 2014. Hide Caption 11 of 43 Photos: The search for MH370 A relative of a missing passenger cries at a vigil in Beijing on April 8, 2014. Hide Caption 12 of 43 Photos: The search for MH370 Australian Defense Force divers scan the water for debris in the southern Indian Ocean on April 7, 2014. Hide Caption 13 of 43 Photos: The search for MH370 A towed pinger locator is readied to be deployed off the deck of the Australian vessel Ocean Shield on April 7, 2014. Hide Caption 14 of 43 Photos: The search for MH370 A member of the Royal New Zealand Air Force looks at a flare in the Indian Ocean during search operations on April 4, 2014. Hide Caption 15 of 43 Photos: The search for MH370 On March 30, 2014, a woman in Kuala Lumpur prepares for an event in honor of those aboard Flight 370. Hide Caption 16 of 43 Photos: The search for MH370 The sole representative for the families of Flight 370 passengers leaves a conference at a Beijing hotel on March 28, 2014, after other relatives left en masse to protest the Malaysian government's response to their questions. Hide Caption 17 of 43 Photos: The search for MH370 A member of the Royal Australian Air Force is silhouetted against the southern Indian Ocean during the search for the missing jet on March 27, 2014. Hide Caption 18 of 43 Photos: The search for MH370 Flight Lt. Jayson Nichols looks at a map aboard a Royal Australian Air Force aircraft during a search on March 27, 2014. Hide Caption 19 of 43 Photos: The search for MH370 People in Kuala Lumpur light candles during a ceremony held for the missing flight's passengers on March 27, 2014. Hide Caption 20 of 43 Photos: The search for MH370 Malaysian Prime Minister Najib Razak, center, delivers a statement about the flight on March 24, 2014. Razak's announcement came after the airline sent a text message to relatives saying it "deeply regrets that we have to assume beyond any reasonable doubt that MH 370 has been lost and that none of those onboard survived." Hide Caption 21 of 43 Photos: The search for MH370 Grieving relatives of missing passengers leave a hotel in Beijing on March 24, 2014. Hide Caption 22 of 43 Photos: The search for MH370 A passenger views a weather map in the departures terminal of Kuala Lumpur International Airport on March 22, 2014. Hide Caption 23 of 43 Photos: The search for MH370 A Chinese satellite captured this image, released on March 22, 2014, of a floating object in the Indian Ocean, according to China's State Administration of Science. It was a possible lead in the search for the missing plane. Surveillance planes were looking for two objects spotted by satellite imagery in remote, treacherous waters more than 1,400 miles from the west coast of Australia. Hide Caption 24 of 43 Photos: The search for MH370 Satellite imagery provided by the Australian Maritime Safety Authority on March 20, 2014, showed debris in the southern Indian Ocean that could have been from Flight 370. The announcement by Australian officials raised hopes of a breakthrough in the frustrating search. Hide Caption 25 of 43 Photos: The search for MH370 Another satellite shot provided by the Australian Maritime Safety Authority shows possible debris from the flight. Hide Caption 26 of 43 Photos: The search for MH370 A distraught relative of a missing passenger breaks down while talking to reporters at Kuala Lumpur International Airport on March 19, 2014. Hide Caption 27 of 43 Photos: The search for MH370 On March 18, 2014, a relative of a missing passenger tells reporters in Beijing about a hunger strike to protest authorities' handling of information about the missing jet. Hide Caption 28 of 43 Photos: The search for MH370 U.S. Navy crew members assist in search-and-rescue operations in the Indian Ocean on March 16, 2014. Hide Caption 29 of 43 Photos: The search for MH370 Members of the Chinese navy continue search operations on March 13, 2014. After starting in the sea between Malaysia and Vietnam, the plane's last confirmed location, search efforts expanded west into the Indian Ocean. Hide Caption 30 of 43 Photos: The search for MH370 A Vietnamese military official looks out an aircraft window during search operations March 13, 2014. Hide Caption 31 of 43 Photos: The search for MH370 Malaysian air force members look for debris near Kuala Lumpur on March 13, 2014. Hide Caption 32 of 43 Photos: The search for MH370 Relatives of missing passengers wait for the latest news at a hotel in Beijing on March 12, 2014. Hide Caption 33 of 43 Photos: The search for MH370 A member of the Vietnamese air force checks a map while searching for the missing plane on March 11, 2014. Hide Caption 34 of 43 Photos: The search for MH370 A Vietnamese air force plane found traces of oil that authorities had suspected to be from the missing Malaysia Airlines plane, the Vietnamese government online newspaper reported on March 8, 2014. However, a sample from the slick showed it was bunker oil, typically used to power large cargo ships, Malaysia's state news agency, Bernama, reported on March 10, 2014. Hide Caption 35 of 43 Photos: The search for MH370 A U.S. Navy Seahawk helicopter lands aboard the USS Pinckney to change crews on March 9, 2014, before returning to search for the missing plane in the Gulf of Thailand. Hide Caption 36 of 43 Photos: The search for MH370 Buddhist monks at Kuala Lumpur International Airport offer a special prayer for the missing passengers on March 9, 2014. Hide Caption 37 of 43 Photos: The search for MH370 Members of a Chinese emergency response team board a rescue vessel at the port of Sanya in China's Hainan province on March 9, 2014. Hide Caption 38 of 43 Photos: The search for MH370 The rescue vessel sets out from Sanya in the South China Sea on March 9, 2014. Hide Caption 39 of 43 Photos: The search for MH370 Malaysian Prime Minister Najib Razak, center, arrives to meet family members of missing passengers at the reception center at Kuala Lumpur International Airport on March 8, 2014. Hide Caption 40 of 43 Photos: The search for MH370 A relative of two missing passengers reacts at their home in Kuala Lumpur on March 8, 2014. Hide Caption 41 of 43 Photos: The search for MH370 Chinese police at the Beijing airport stand beside the arrival board showing delayed Flight 370 in red on March 8, 2014. Hide Caption 42 of 43 Photos: The search for MH370 Malaysia Airlines Group CEO Ahmad Juahari Yahya, front, speaks during a news conference at a hotel in Sepang on March 8, 2014. "We deeply regret that we have lost all contacts" with the jet, he said. Hide Caption 43 of 43

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This isn't the first time authorities have announced the discovery of objects or oil slicks that might be tied to aircraft. Still, it is the latest and comes on the same day that officials, rather than narrowing the search area, more than doubled it from the day earlier to nearly 27,000 square nautical miles (35,000 square miles).

The vastness of the area and the limited details that authorities have given makes it hard to tell whether the spot that the satellite imagery captured has been searched. A Malaysian air force official, who is not authorized to speak to the media, did say Thursday morning that its aircraft were heading to that area.

Bill Palmer -- author of a book on Air France's Flight 447, which also mysteriously went missing before its remnants were found -- said having a search area of that size is immensely challenging. He compared it to trying to find something the size of a car or truck in Pennsylvania, then widening it to look for the same thing in all of North America.

"It's a very, very difficult situation to try to find anything," Palmer told CNN's Brooke Baldwin. "Looking for pieces on the shimmering water doesn't make it any easier."

The Chinese satellite find could help, significantly, in that regard.

"I think the size of the pieces ... everything we've heard... gives good cause to believe that we've now (refocused) the area," former Federal Aviation Administration official Michael Goldfarb told CNN. "And that's a huge relief to everybody ... I think it's a high chance that they're going to confirm that these (are) pieces of the wreckage."

But not every expert was convinced this is it. Clive Irving, a senior editor with Conde Nast Traveler, said that the size of the pieces -- since they are fairly square and large -- "don't conform to anything that's on the plane."

Tom Haueter, a former NTSB aviation safety director, said he'd be "surprised" if the objects came from the plane, rationalizing that anything that big wouldn't float.

Regardless, time is of the essence -- both for investigators and the loved ones of the plane's 239 passengers and crew, who have waited since Saturday for any breakthrough that would provide closure.

The flight data recorders should "ping," or send out a signal pointing to its location, for about 30 days from the time the aircraft set off, noted Goldfarb. After that, Flight 370 could prove exponentially harder to find.

"It's the only clue that we've had so far," CNN aviation expert Richard Quest said of the satellite imagery clues. "If this doesn't prove to be the wreckage of 370, then we're back to square one."

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The Malaysia Airlines flight set off seemingly without incident early Saturday, not long after midnight, en route to Beijing.

Then, around 1:30 a.m., all communication cut off over a location south and east of where the Chinese satellite images were shot.

Azharuddin Abdul Rahman, the head of Malaysia's civil aviation department, said around 6 a.m. Thursday in Kuala Lumpur -- hours after China's announcement -- that his agency had not seen the images.

This assertion comes amid frustration about the investigation, search and communication surrounding both.

Relatives of those aboard the plane have expressed outrage, with video showing some of them angrily throwing water bottles at airline officials. And on Tuesday, a middle-aged man -- who said his son was on that plane -- shouted, "Time is passing by," before bursting into tears.

Some involved in the multinational search operation have also vented about the ordeal.

Most of those on the flight were Chinese, and the Chinese government has urged Malaysia to speed up the pace of its investigation.

And Phan Quy Tieu, Vietnam's vice minister of transportation, has characterized the information that Malaysian officials have provided as "insufficient."

"Up until now we only had one meeting with a Malaysian military attache," he said.

For now, Vietnamese teams will stop searching the sea south of Ca Mau province, the southern tip of Vietnam, and shift the focus to areas east of Ca Mau, said Doan Luu, the director of international affairs at the Vietnamese Civil Aviation Authority.

Malaysia's transportation and defense minister Hishamuddin Bin Hussein defended his government's approach. "We have been very consistent in the search," he said.

Confusion about plane's route

Over the weekend, authorities suddenly expanded their search to the other side of the Malay Peninsula, in the Strait of Malacca, where search efforts now seem to be concentrated.

That location is hundreds of miles off the plane's expected flight path.

An explanation appeared to come Tuesday when a senior Malaysian Air Force official told CNN that the Air Force had tracked the plane to a spot near the small island of Palau Perak off Malaysia's west coast in the Strait of Malacca.

The plane's identifying transponder had stopped sending signals, too, said the official, who declined to be identified because he was not authorized to speak to the media.

Malaysia's civilian administration appeared to dispute the report, however.

The New York Times quoted a spokesman for the Malaysian prime minister's office as saying Tuesday that military officials had told him there was no evidence the plane had flown back over the Malay Peninsula.

The Prime Minister's office didn't immediately return calls from CNN seeking comment.

In another shift, Malaysian authorities said at a news conference Wednesday that radar records reviewed in the wake of the plane's disappearance reveal an unidentified aircraft traveling across the Malay Peninsula and some 200 miles into the Strait of Malacca.

However, it wasn't clear whether that radar signal represented Malaysia Airlines Flight 370, Gen. Rodzali Daud, head of the Malaysian Air Force, said at the news conference.

Rodzali said then that officials are still "examining and analyzing all possibilities" when it comes to the plane's flight path.

As Rob Mark, a commercial pilot and publisher of JetWhine.com, told CNN's Erin Burnett: "There's so much confusing information flying around about this right now."

Nothing has been ruled out as to what caused the plane's communication systems -- including its crucial transponder -- to suddenly stop working.

Terrorism, hijacking, pilot error and a mechanical malfunction all remain just as valid as possibilities now as when the plane went missing.

Amid all the confusion and complaints, Malaysian Prime Minister Najib Razak on Wednesday appealed for patience.

"The families involved have to understand that this is something unexpected," Najib said. "The families must understand more efforts have been made with all our capabilities."

Danica Weeks is trying to keep it together for her two young sons, though the possibility of life without husband Paul is sometimes overwhelming. She's clinging to hope even though, as Weeks told CNN's Piers Morgan, it's "not looking good."

"Every day it just seems like it's an eternity, it's an absolute eternity," Weeks said from Australia. "We can only go minute-by-minute ... and hope something comes soon."