Limited visibility is the single greatest contributing factor in most fatal worldwide airline and general aviation crashes. In commercial aviation, over 30% of all fatal accidents worldwide are categorized as Controlled Flight into Terrain accidents. This is where a functioning aircraft crashes into terrain or obstacles that the pilots could not see due to poor visibility. Another major accident category being encountered more frequent in the U. S. is called a runway incursion. This is where an aircraft on the ground and one in the air try to share the same runway. A revolutionary new cockpit display system currently being developed by NASA will help to prevent many of these accidents from ever occurring again. NASA is developing a virtual reality display system called Synthetic Vision. When Synthetic Vision is placed inside cockpits, pilots will be able to see clearly even in the worst conditions.