The 2014 disappearance of Malaysian Airlines flight MH370 remains one of the greatest mysteries in aviation history. Now, scientists believe they've narrowed down the potential search area to a fraction of space that was searched in Dec 2016. Investigators now know the plane crashed somewhere along a line known as the seventh arc, to the west of Western Australia. They came to this conclusion by looking at the plane's last transmission, and then examining a large search area in the Indian ocean, which was partially based on how far the plane could have glided. "We think we know quite precisely where the plane is," Dr David Griffin from the CSIRO said. He said while the physical search was suspended in January this year, the work had continued in Australian laboratories, modelling ocean drift. <br/>