Original sentence: Houston Gulf Airport was a single-runway airport located in eastern League City, Texas, United States.Its FAA code was SPX
Edited sentence: Aerial photo as of 15 January 1995 from USGS The National Map via TerraServer-USA.Houston Gulf Airport  was a single-runway airport located in eastern League City, Texas, United States.Its FAA code was SPX and its IATA code was also SPX.The airport opened in 1967 as the Spaceland Airport, a name related to the Johnson Space Center, located about 4 miles north of the airport