Microwaves are broadcast from, say, New York, to a satellite orbiting over Omaha, then bounced to Los Angeles.
Looking for planets orbiting red dwarfs is easier because the stars are less massive.
It's not reliant on terrestrial cell towers, instead connecting to Iridium's network of 66 low-orbiting satellites.
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Imagine having to recount everything you ate in a week while orbiting the Earth.
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But the method favours the detection of large planets orbiting close to its parent star.
The orbiting network in the sky connects to Earth via some 16 operational ground stations.
Scientists trained the orbiting camera on the Pathfinder because the location is easiest to find.
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The goal is to make sure all low-orbiting material is removed within 25 years of launch.
Big geostationary satellites, orbiting 26, 000 miles above the sky, are a lousy two-way synchronous Internet medium.
It is one of at least four Israeli spy satellites currently orbiting the Earth.
Yesterday, Chinese taikonauts aboard the Shenzhou-9 completed a manual docking with orbiting space laboratory Tiangong-1.
Asteroids are large, irregular, rocky bodies orbiting the Sun roughly between Mars and Jupiter.
Observing the motions of the stars orbiting the central object allows scientists to estimate its mass.
And, more romantically, robotic probes travel throughout the solar system, orbiting and landing on other planets.
But one of the big innovations of recent years has been the low-orbiting satellite.
Variations in these brightness patterns might reveal the presence of a moon orbiting a planet.
The first direct image of a planet orbiting around another star is still some years away.
But neither applies to the case of stars orbiting the outer reaches of a galaxy.
Although they are complicated and expensive, Iridium's low-earth orbiting satellites have worked pretty much as billed.
There are models to follow: My fellow ham radio operators have been orbiting satellites since December, 1961.
The chief lobbyist for Mir is the Energiya rocket corporation, which built and owns the orbiting laboratory.
It has two old satellites in orbit that are likely to become targets for a future de-orbiting exercise.
The mission is set to include three spacewalks to store hardware on the outside of the orbiting outpost.
The Orbiting Carbon Observatory crashed two years ago when NASA was flush with money from economic stimulus legislation.
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This looks for spectral signs that a star is wobbling due to gravitational tugs from an orbiting planet.
The Starboard 6 truss holds the fourth pair of solar arrays needed to fully power the orbiting outpost.
But a single orbiting object, calculates Dr Lin, could cause symmetrical clumping on either side of the disc.
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But the same group has already used this orbiting camera to locate the Mars rovers Spirit and Opportunity.
That company wants to start by launching orbiting telescopes that would identify suitable asteroid targets for mineral exploitation.
In Guadeloupe, a team from the Harvard-Smithsonian Center for Astrophysics will study radio signals from Galileo orbiting Jupiter.
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