A year after Malaysia Airlines Flight 370 went missing, search crews continue to scour a vast area of the Indian Ocean west of Australia that is thought to be the plane’s final resting place. With no closure, family members continue to mourn their loved ones who presumably perished aboard the aircraft. Some are still waiting for any scrap of evidence to prove that the plane indeed went down so they can move on.

Flight 370’s disappearance is now one of the greatest aviation mysteries of all time. How a Boeing-777 could vanish without a trace and with little indication of which direction it was headed has baffled investigators, not to mention the world, since the aircraft vanished March 8, 2014. Not a single piece has been recovered. Any debris found on the surface of the ocean during the year-old search has turned out to be unrelated.

Ground control in Malaysia lost contact with Flight 370 less than an hour after the jet took off from Kuala Lumpur International Airport bound for Beijing. The military was able to track the plane and its 239 passengers and crew for another hour through radar, but eventually the aircraft drifted out of range.

Investigators have poured countless resources into finding Flight 370, an international effort led by the Malaysian and Australian governments. The bulk of their search has been conducted in a previously uncharted region of the southern Indian Ocean about 2,500 kilometers (1,550 miles) west of Perth, Australia.

Although many have given up hope of ever locating Flight 370, aviation experts maintain that with time, the plane will be found. “Right now, I'm just waiting for the truth about MH370,” Cheng Liping, whose husband was a passenger, told the Los Angeles Times. “I still have hopes that my husband can come back to us.”

flight-1 The sun is seen through low clouds in this picture taken from a Royal New Zealand Air Force aircraft during a search for the missing Malaysian Airlines flight MH370 over the southern Indian Ocean, March 29, 2014. Photo: Reuters

flight-2 Malaysia's acting Transport Minister Hishammuddin Hussein shows two maps with corridors of the last known possible location of the missing Malaysia Airlines MH370 plane as he addresses reporters at the Kuala Lumpur International Airport, March 17, 2014. Photo: Reuters

flight-3 A family member lights candles during a candlelight vigil for passengers onboard the missing Malaysia Airlines Flight MH370 in the early morning at Lido Hotel, in Beijing, April 8, 2014. Photo: Reuters

flight-4 A woman leaves a message of support and hope for the passengers of the missing Malaysia Airlines MH370 in central Kuala Lumpur, March 16, 2014. Photo: Reuters

flight-5 Kelly (last name not given), 29, the wife of a passenger aboard the missing Malaysia Airlines Flight MH370, holds a picture of her husband walking with Malaysia's Prime Minister Najib Razak, at a news conference in Putrajaya, January 29, 2015. Photo: Reuters

flight-6 The Chinese Maritime Safety Administration (MSA) vessel Hai Xin 01 is seen from a Royal New Zealand Air Force aircraft in the southern Indian Ocean during the search for flight MH370, April 13, 2014. Photo: Reuters

flight-7 Crew aboard the Australian Defence Vessel Ocean Shield move the U.S. Navy's Bluefin-21 autonomous underwater vehicle into position for deployment in the southern Indian Ocean to look for the missing Malaysia Airlines flight MH370, April 14, 2014. Photo: Reuters

flight-8 A picture taken of a computer monitor shows a piece of unknown debris floating just under the water that was spotted from a Royal New Zealand Air Force maritime search aircraft while flying over the southern Indian Ocean looking for missing Malaysian Airlines flight MH370 March 31, 2014. Photo: Reuters

flight-9 A woman whose son was aboard Malaysia Airlines Flight 370 reacts after she and other family members were kept from expressing their appeals to the airline outside its office in Beijing, June 11, 2014. Photo: Reuters

flight-10 Liu, whose husband Lu was aboard Malaysia Airlines Flight 370, which disappeared on March 8, 2014, shows a last message from her missing husband (bottom on screen), during an interview with Reuters in Beijingn July 18, 2014. They got married on March 1, a week before the plane vanished. Photo: Reuters

flight-11 A woman whose son was aboard Malaysia Airlines Flight 370 reacts after she and other family members were kept from expressing their appeals to the airline outside its office in Beijing, June 11, 2014. Photo: Reuters