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The ACE (Advanced Compostion Explorer) was launched aboard a Delta II rocket in August 1997. This unique NASA mission will run a minimum of 2 years (with an expected lifetime of over 5 years). This mission
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COSPIN is one of the instruments onboard the Ulysses spacecraft. COSPIN stands for the COsmic and Solar Particle INvestigation. The COSPIN instrument is actually made up of 5 different sensors: the Dual
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Lennard Fisk of the University of Michigan released a controversial model of the Sun's magnetic field last year. His model refuted the accepted model formed in the 1950's. More and more evidence is being
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Until recently, spacecraft have only been able to measure a limited, two-dimensional section of the heliosphere. This is because spacecraft were confined to stay within the plane of the ecliptic (the plane
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With the help of the SOHO (Solar and Heliospheric Observatory) spacecraft, scientists at Standford University have made some exciting discoveries. The first discovery is that there are streams of plasma
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The SWICS (Solar Wind Ion Composition Spectrometer) instrument on Ulysses is to measure the frequency of occurence, temperature and mean speed of all the major solar wind ions, from Hydrogen through Iron.
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SWOOPS stands for "Solar Wind Observations Over the Poles of the Sun". This Solar Wind Plasma Experiment onboard Ulysses is basically making a map of the interplanetary plasma within the heliosphere (i.e.,
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"Without warning, the relatively calm solar atmosphere can be torn asunder by sudden outbursts of a scale unknown on Earth. Catastrophic events of incredible energy...stretch up to halfway across the visible
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The Spring 2011 issue of The Earth
Scientist is
focused on modernizing seismology education. Thanks to IRIS, you can download this issue
for free as a pdf. Print
copies are available in our online store.
