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NASA Tests Earthquake-Seeking Balloons as Way to Study Venus – VOA Learning English
NASA researchers have successfully used balloons to detect earthquakes in an experiment that could be used to study seismic activity…

U.S. space agency researchers successfully used balloons to detect earthquakes in the California desert.
The experiment tested whether similar balloons could be sent to Venus to study that planets seismic activity. NASA recently announced plans to launch…
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