After 13 days, has Malaysia Airlines Flight 370 finally been found? Australian authorities sent four military search planes to check on two possible pieces of plane debris spotted via satellite in the Indian Ocean around 1,500 miles southwest of Perth, the larger of which is around 80 feet across, reports CNN. The AP reports that the planes ended the day having had no luck; they combed an 8,800-square-mile area but were hampered by low visibility caused by clouds and rain. The search will resume tomorrow, but Australian authorities warn against jumping to conclusions. Satellite images "do not always turn out to be related to the search even if they look good, so we will hold our views on that until they are sighted close-up," says John Young, the Australian Maritime Safety Authority's emergency response chief.