satellite cataloguing control
11Lewis Mumford — Infobox Writer name = Lewis Mumford birthname = birthdate = birth date|1895|9|19|df=y birthplace = deathdate = death date and age|1990|1|26|1895|9|19|df=y deathplace = occupation = Historian, Writer nationality = American genre = History… …
12Asteroid-impact avoidance — Planetary defense redirects here. For defending against alien invasion in fiction, see alien invasion. Artist s impression of a major impact event. The collision between Earth and an asteroid a few kilometres in diameter releases as much energy… …
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