The search for Flight MH370 is moving westward into the Indian Ocean. It now appears that two of the aircraft’s operating systems were separately shut down, further evidence that it did not suffer a sudden catastrophic failure. Despite conflicting media reports, there is a growing belief that the plane continued to fly for hours after contact with ground controllers was broken. The flight had enough fuel to fly 2,500 miles, which could have carried it far across the Indian Ocean. Six days after the disappearance, an answer seems more remote than ever.