Military search planes flew over a remote part of the Indian Ocean today hunting for debris in what they call the "best lead so far" in finding the missing Malaysia Airlines flight.
ABC's Devin Dwyer has the latest
Today an urgent search of waters halfway to Antarctica turned up little more than a passing ship and pods of dolphins.
But investigators say these grainy 4-day-old satellite images could show floating parts of flight 370.
Australian Prime Minister Tony Abbott: "Just maybe this is the first tangible evidence that we've got of what might have happened."
High-tech search planes from the US and Australia are racing to track the objects down. One piece of debris believed to be 78 feet long.
A Norwegian car carrier arrived in the area to help, but Navy ships with sonar are still several days away.
Tom Haueter, former NTSB investigator: "The issue is to find debris that could be identified as aircraft and then work all the current wind data backwards to predict where that airplane was when it impacted the water."
It's possible the debris is unrelated to the plane. But US experts say those satellite pings from the jet have led them to this area.
"We'd like to find something to give it a bit of closure answers to the family and relatives of the people on board the Malaysia Airlines flight. But if we don't find something as well, there's always hope that maybe the aircraft is somewhere else and they're safe and sound."
Families of the missing are clinging to that hope during what's been an agonizing and exhausting wait.
Sarah Bajc is the girlfriend of missing passenger Philip Wood: "I've been holding out that the passengers are still alive and if that is parts of the plane, then that kind of dashes that hope."
Now almost two weeks after the plane disappeared, US officials tell us it's still possible it may never be found- but they're optimistic.