space or ocean activity
Defined in 1 dictionary — U.S. Code
United States Code
26 U.S.C. § 863 — in this section (4 versions over time)
The term “space or ocean activity” means—
(i) any activity conducted in space, and
(ii) any activity conducted on or under water not within the jurisdiction (as recognized by the United States) of a foreign country, possession of the United States, or the United States.