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• n  the (usually elliptical) path described by one celestial body in its revolution about another
  he plotted the orbit of the moon
• n  a particular environment or walk of life
  he's out of my orbit
• n  an area in which something acts or operates or has power or control: "the range of a supersonic jet"
  in the political orbit of a world power
• n  the path of an electron around the nucleus of an atom
• n  the bony cavity in the skull containing the eyeball
• v  move in an orbit
  The moon orbits around the Earth
  The planets are orbiting the sun
  electrons orbit the nucleus

• Their original Earth orbit flight plan would be changed to a lunar orbit.
• The third stage left the satellite stranded in an unusable orbit.
• A pet project of Space-Flight Prophet Wernher von Braun and his disciples is the creation of an artificial satellite revolving in an orbit 1,000 miles above the earth.

• celestial orbit
• sphere
• domain
• area
• field
• arena
• scope
• range
• reach
• compass
• ambit
• electron orbit
• eye socket
• cranial orbit
• orbital cavity
• orb
• revolve

News & Articles

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• New NASA satellite to begin sun-watching mission
  From its perch in low-Earth orbit, NASA's newest satellite will soon get a close-up look at a little-explored region of the sun that's thought to drive space weather that can affect Earth.
  July 1, 2013 - Laramie Boomerang
• Editorial: Greetings, Venusians. Take me to your ATM
  At any given moment, there are only a handful of humans in space — in the International Space Station and, occasionally, some Chinese astronauts shot into orbit for a short ride.
  July 1, 2013 - Memphis Commercial Appeal
• Photos: Astronaut In Orbit Drives Robots on Earth
  NASA astronaut Chris Cassidy was soaring in orbit while using a computer to drive a rover in California.
  June 30, 2013 - SPACE.com

Quotes

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• Stephen Robinson in International Herald Tribune
  It's great to have some good, on orbit electricians working for us,said astronaut Stephen Robinson in Mission Control.
• Peggy Whitson in International Herald Tribune
  The first time we have two female commanders in orbit - that will be neat,Whitson said.
• Piers Sellers in National Post
  We're delighted to take this piece of Sir Isaac Newton's apple tree to orbit. While it's up there, it will be experiencing no gravity, so if it had an apple on it, the apple wouldn't fall,Sellers said. "I'm pretty sure that Sir Isaac would...