| For more than 40 years, the Moon has been visited by automated space probes and by nine manned expeditions, six of which landed on its surface. |
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| For this reason, electric currents can be induced within fast-moving metal space probes. |
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| She begins with the portolan charts of the ancients and ends with NASA's space probes. |
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| Promethium may be used in the future as a heat source to provide energy for space probes and satellites. |
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| In the seventies, NASA launched four space probes to explore the outer solar system. |
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| In the space field, information is gathered using space probes, launched to explore faraway planets and asteroids. |
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| To get a better view of the more distant planets requires space probes. |
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| In addition, satellites and space probes are becoming increasingly effective because of the spectacular progress of micro-electronics. |
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| This is especially useful in cleaning up astronomical images from space probes, sharpening the focus onto an area of interest. |
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| Perhaps future space probes will be plastered in commercial logos, just as formula one cars are now. |
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| In 1979, the twin Voyager space probes flew past Jupiter at approximately ten times the speed of a rifle bullet. |
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| For example, scientists planning space probes still use Newton's equations to plot their flight. |
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| The necessary precautions must therefore be taken to prevent their contamination, in particular by space probes. |
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| With the introduction of orbiting satellites and space probes, which overcame the limitations that the earth's atmosphere placed on surface stations and balloons, land-based stations have waned in importance. |
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| The facility will contribute to numerous ESA space probes, as well as CONAE's own, domestic research projects. |
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| In 1984, the Soviet space probes Vega 1 and Vega 2 released two balloons with scientific experiments in the atmosphere of Venus. |
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| Numerous space probes have flown by or landed on objects in our solar system, and orbiting satellites and telescopes now have clear and unobstructed views of the universe. |
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| If we send space probes to the far reaches of outer space, tell me, why couldn't they remove one crazed dictator from power without war. |
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| But space probes like the 1997 Sojourner land rover have yielded no evidence of such alien beings. |
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| The Sounds of Earth In 1977, a pair of phonograph records containing recordings of life on Earth were launched aboard the twin Voyager space probes. |
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| Sergeeva envisioned a smaller version to power space probes. |
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| As was indicated in recital 22, observation and scientific satellites and space probes are primarily purchased by space agencies, and competition is usually restricted to domestic satellite prime contractors. |
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| Observation and scientific satellites and space probes are usually designed, developed, produced and launched in the context of phased projects, where competition takes place at certain steps. |
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| There might also be national markets for observation and scientific satellites and space probes in those Member States where national space agencies apply similar procurement procedures at the prime contractor level. |
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| Nuclear power is even used on planetary space probes. |
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| Deep space probes must use other sources of power, such as nuclear power, in order to operate effectively for long periods of time at great distances from the Sun. |
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| Students can get daily reports of space shuttle missions, see pictures from various space probes and ask questions to astronauts, as well as many other educational features. |
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| Are we giving them as much attention as we give our space probes? |
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| Canadian scientists have obtained the data from the participation in the mission and from the CANOPUS ground-based array of geophysical instruments that complement international solar-terrestrial space probes. |
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| The plutonium used on space probes is not the Plutonium-239 isotope used in atomic bombs and built up as a byproduct in nuclear power plants. |
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| This is evident in space probes that continuously move in outer space. |
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| By that time, based on the results of lunar surface exploration by unmanned space probes, we will designate most promising places for lunar expeditions and lunar bases. |
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| In just over six years, Actel Corporation has become the world's largest supplier of programmable logic semiconductors aboard satellites and space probes around the world. |
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