Space debris — populations seen from outside geosynchronous orbit (GEO). Note the two primary debris fields, the ring of objects in GEO, and the cloud of objects in low earth orbit (LEO) … Wikipedia
Space elevator — A space elevator for Earth would consist of a cable anchored to the Earth s equator, reaching into space. By attaching a counterweight at the end (or by further extending the cable upward for the same purpose), the center of mass is kept well… … Wikipedia
space station — space station, adj. an orbiting manned structure that can be used for a variety of purposes, as to assemble or service satellites, refuel spacecraft, etc. Also called space platform. [1940 45] * * * Manned artificial structure designed to revolve … Universalium
Earth Day — is one of two observances, both held annually during spring in the northern hemisphere, and autumn in the southern hemisphere. These are intended to inspire awareness of and appreciation for the Earth s environment. The United Nations celebrates… … Wikipedia
Space Nursing Society — (SNS) is an international space advocacy organization devoted to space nursing and the contribution to space exploration by Registered Nurses. SNS is an affliated, non profit special interest group associated with the National Space… … Wikipedia
Space Dock (Space: 1999) — Space Dock Space Dock (aka Interplanetary Space Station, Meta Probe Launch Platform Centauri Space Station) First appearance Breakaway Affiliation Moonbase Alpha … Wikipedia
Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… … Universalium
Space Shuttle — STS redirects here. For other uses, see STS (disambiguation). This article is about the NASA Space Transportation System vehicle. For the associated NASA STS program, see Space Shuttle program. For other shuttles and aerospace vehicles, see… … Wikipedia
Space Race — For a discussion of all spaceflight programs to date, see History of spaceflight. For a list of key events, see Timeline of space exploration. For other uses of the term, see Space Race (disambiguation). A replica of Sputnik 1, the world s… … Wikipedia
Space-based solar power — Left: Part of the solar energy is lost on its way through the atmosphere by the effects of reflection and absorption. Right: Space based solar power systems convert sunlight to microwaves outside the atmosphere, avoiding these losses, and the… … Wikipedia