88 Space Sciences (General)
Includes general research topics related to the natural space sciences. For specific topics in Space Sciences see categories 89 through 93.
Space Sciences – The specific discipline associated with the development of knowledge about the universe. Apollo Terminology, August 1963. NASA SP-6001.
Exhaustive Interest : Scientific studies of the regions beyond the Earth's atmosphere.
Negative Interest : Pseudoscientific reports on the universe and unidentified flying objects.
Input Subjects of Specific Interest