Gas giant
The smallest known extrasolar planet that is likely a "gas planet" is Kepler-138d, which has the same mass as Earth but is 60% larger and therefore has a density that indicates a thick gas envelope.
List of airports in Tuvalu
Tuvalu, formerly known as the Ellice Islands, is a Polynesian island nation located in the Pacific Ocean, midway between Hawaii and Australia. Its nearest neighbours are Kiribati, Nauru, Samoa and Fiji. It comprises four reef islands and five true atolls. Its population of 12,373 makes it the second-least-populated sovereign state in the world, with only Vatican City having fewer inhabitants. In terms of physical land size, at just Tuvalu is the fourth smallest country in the world, larger only than the Vatican City at , Monaco at and Nauru at .