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Mapping the Earth’s magnetic field

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Current astronomy technology could be used to more accurately measure the Earth’s magnetic field, physicists have found. This development could prove useful in tracking storms, finding oil and minerals, or studying the planet’s interior. A group of scientists from the University of California has discovered a more effective way to measure the Earth’s magnetic field using ground-based lasers rather than satellites. They found that the same sodium atoms in the atmosphere used in laser guide stars – artificial stars used as a reference point to adjust telescope...Read full article

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    Published: April 2011
    Glossary
    astronomy
    The scientific observation of celestial radiation that has reached the vicinity of Earth, and the interpretation of these observations to determine the characteristics of the extraterrestrial bodies and phenomena that have emitted the radiation.
    remote sensing
    Remote sensing is a method of data collection and observation where information about objects, areas, or phenomena on Earth's surface is gathered from a distance, typically using sensors onboard satellites, aircraft, drones, or other platforms. This technique enables the monitoring and analysis of Earth's surface and atmosphere without direct physical contact. Remote sensing systems capture electromagnetic radiation (such as visible light, infrared, microwave, or radio waves) reflected or...
    AmericasastronomyBasic ScienceCaliforniaclimatologydefenseDepartment of Defensegeologyground-based lasersImaginglaser guide starsmagnetic fieldmagnetizationNational Geospatial-Intelligence AgencyNGA NURIoil and mineral explorationorange laser beamremote sensingResearch & TechnologysatellitesSensors & Detectorssodium atomsTech Pulsetracking stormsUniversity of California BerkeleyUniversity Research InitiativesLasers

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