George and Angela Dyczynski saw much at the MH17 crash site but nothing that diminished their belief that their daughter, Fatima, somehow survived.
In fact, Ms Dyczynski has threatened to sue anyone who suggests - without evidence - that Fatima is dead.
The Perth-based parents arrived back in the Netherlands yesterday after a five-day trip during which they reached the crash site in rebel-controlled eastern Ukraine.
At Amsterdam Airport they clasped a flyer for the upcoming International Astronautical Congress in Canada and told AAP: "Fatima is a speaker at the conference."
There was no suggestion the couple's brilliant 25-year-old daughter might not be able to make it to Toronto in late September.
They want Fatima's colleagues from the space science community to become involved in the crash investigation. They want the best of the best on the case.
Fatima had, after all, created a start-up company to send nano-satellites into space. "She was an aerospace engineer, she was a scientist, she was a young person with new ideas and new perspectives and new horizons," Dr Dyczynski said.
"We want more scientific investigations with the data that's already gathered. It should start now - not wait months and months until we forget."
The couple say an expert panel including space scientists could help prevent future incidents.
Dr Dyczynski believes something is amiss in the world's skies - particularly given the disappearance of MH370 in March.
"Maybe not all things are looked at from the right perspective," the cardiologist and acupuncturist said.
"Maybe other perspectives are important to investigate. It's not only maybe a missile (that downed MH17) but something more.
"If it would have been a missile, and the rebels shot down this aeroplane, they would not have handed out the black boxes."
It's one thing to question how the plane was brought down, but another to believe a passenger could have survived. The fact the Dyczynskis do is down to a combination of faith and science.
"There is a small possibility that something still survived," Fatima's father said.
"The people of Donetsk were first at the crash site and if somebody survived maybe they have taken them."
The couple plan to stay in Amsterdam for two or three days and then likely head home to Australia.
They've received support from back home and from Australia's Foreign Minister Julie Bishop who wrote to them after the crash.
In return, the Dyczynskis left Ms Bishop, who's currently in Kiev, one of four sunflowers they took from the crash site.
The remaining three flowers are destined for the Netherlands' Princess Beatrix and Fatima's two grandmothers.