Complex sentence: Our Worlds at War, and earlier being Infinity, Inc. 's primary pilot.However in the DC Encyclopedia, it stated that he could grow up to 60 feet without problems, whether their is a limit to the heights he can grow to is unknown.
Split into simpler sentences: Our Worlds at War, and earlier being Infinity, Inc. 's primary pilot. Whether there is a limit to the heights he can grow to is unknown.