That is because current rules say any elevation can only
include habitable spaces that are adjacent to or above the adjacent grade level.
Not exact matches
From this survey data, NASA's James Webb
Space Telescope as well as large ground - based observatories will be able to further characterize the targets, making it possible for the first time to study the masses, sizes, densities, orbits, and atmospheres of a large cohort of small planets,
including a sample of rocky worlds in the
habitable zones of their host stars.
A star system, approximately 40 light - years from Earth, with seven Earth - sized planets,
including three in the
habitable zone, has been discovered by NASA's Spitzer
Space Telescope.
Should
habitable space include patios / decks, front steps, staircases / landings (and storage areas under stairs / landings), etc?