July 15, 2013
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NASA’s Interstellar Boundary Explorer, or IBEX, recently mapped the boundaries of the solar system’s tail, called the heliotail. By combining observations from the first three years of IBEX imagery, scientists have mapped out a tail that shows a combination of fast and slow moving particles. The entire structure twisted, because it experiences the pushing and pulling of magnetic fields outside the solar system.
Our solar has a comet-like tail called heliotail. NASA’s Interstellar Boundary Explorer has mapped the shape of the tail based on the relative speed of solar particles. I wonder if it is possible to observe the same phenomena from nearest stars (Alpha Centauri, Sirius, Barnard’s Star, …, etc.) in our part of galactic neighborhood.
February 23, 2013
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On July 19, 2012, an eruption occurred on the sun that produced a moderately powerful solar flare and a dazzling magnetic display known as coronal rain. Hot plasma in the corona cooled and condensed along strong magnetic fields in the region. Magnetic fields, are invisible, but the charged plasma is forced to move along the lines, showing up brightly in the extreme ultraviolet wavelength of 304 Angstroms, and outlining the fields as it slowly falls back to the solar surface. Music: “Thunderbolt” by Lars Leonhard, courtesy of artist.
Note: NASA’s embedded scripts are not compatible here, so an alternative source (instead of official source) is used. Also, the music can be a bit distracting.