empty+space
61space absorption — noun : the attenuation of the light of stars and galaxies when it encounters interstellar matter within a galaxy or material in the relatively empty regions between galaxies : the reddening of starlight by interstellar matter …
62Finite topological space — In mathematics, a finite topological space is a topological space for which the underlying point set is finite. That is, it is a topological space for which there are only finitely many points.While topology is mostly interesting only for… …
63Connected space — For other uses, see Connection (disambiguation). Connected and disconnected subspaces of R² The green space A at top is simply connected whereas the blue space B below is not connected …
64Outer space — For other uses, see Outer space (disambiguation). The boundaries between the Earth s surface and outer space, at the Kármán line, 100 km (62 mi) and exosphere at 690 km (430 mi). Not to scale Outer space is the void that exists beyond any… …
65Free space — In classical physics, free space is a concept of electromagnetic theory, corresponding to a theoretically perfect vacuum, and sometimes referred to as the vacuum of free space. The definitions of the ampere and meter SI units are based upon… …
66Ma (negative space) — Ma () is a Japanese word which can be roughly translated as empty , gap or space or as the space between two structural parts. [ [http://japanese.about.com/library/weekly/aa082097.htm| Japanese language definition] ] [Referenced from several… …
67Absolute time and space — See also: Absolute rotation, Bucket argument, Rotating spheres, and Inertial frame of reference Originally introduced by Sir Isaac Newton in the Philosophiæ Naturalis Principia Mathematica, the concepts of absolute time and space provided a… …
68Philosophy of space and time — is the branch of philosophy concerned with the issues surrounding the ontology, epistemology, and character of space and time. While such ideas have been central to philosophy from its inception, the philosophy of space and time was both an… …
69air space — Synonyms and related words: CAT, Lebensraum, aerospace, aerosphere, air hole, air pocket, area, back country, belt, bump, ceiling, clear space, clearance, clearing, confines, continental shelf, corridor, country, crosswind, department, desert,… …
70Deep Impact (space mission) — Infobox Spacecraft Name = Deep Impact Caption = Illustration of the Deep Impact space probe after impactor separation (artist s conception). Organization = NASA Major Contractors = Ball Aerospace Technologies Corp., JPL Mission Type = Flyby,… …
