2. This category is intended to service aerospace technical professionals and academia. Any non-commercial or commercial sites that deal with aerospace technologies and that are of general use to this community of professionals are acceptable.
3. This category differs from the Science/Technology/Space category in that the latter will also include many sites of interest to amateur space enthusiasts and lay people. This category and the space category may duplicate some listings for the major resources (such as NASA), but the goal is to minimize this duplication and cross-reference where possible.
4. Sites relating to the natural world beyond the earth, and the instruments used to study it, should be submitted to Science/Astronomy.
5. Sites relating to the study of weather and atmospheric phenomena should be submitted to either Science/Earth_Sciences/Meteorology or Science/Earth_Sciences/Atmospheric_Physics.