The search is entering its third week.
Debris spotted by satellites some 1500 miles off the coast of Australia in the Indian Ocean raised some hope that an end might be in sight.
Unfortunately the remoteness of the location and uncooperative weather have prevented searchers from actually locating the debris.
In the latest development NASA has joined the search and will train its satellites on the area of the Indian Ocean where the debris was sighted five days ago.
People are now beginning to face the very real prospect that this airplane may never be found and we'll never know what really happened.