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9/14/16:Hinode: 10th Anniversary of Its Launch. The solar observing satellite “Hinode” will celebrate the 10th anniversary of its launch on 23 September (Japan standard time). This 3-minutes movie presents the solar atmosphere fulfilled with active phenomena much more than ever imagined, captured with the Hinode telescopes.
9/1/16: Images From Sun’s Edge Reveal Origins of Solar Wind. Ever since the 1950s discovery of the solar wind -- the constant flow of charged particles from the Sun -- there's been a stark disconnect between this outpouring and the sun itself. The details of the transition from defined rays in the corona, the sun's upper atmosphere, to the solar wind have been, until now, a mystery.
8/24/16: Solar activity has a direct impact on Earth’s cloud cover. Solar variations affect the abundance of clouds in our atmosphere, a new study lead by DTU Space suggests. Large eruptions on the surface of the Sun can temporarily shield Earth from so-called cosmic rays which now appear to affect cloud formation.
8/23/16: Return of Stereo B. On Aug. 21, 2016, NASA reestablished contact with the sun-watching STEREO-B spacecraft, after communications were lost in October 2014. STEREO-B is one of two spacecraft of the Solar Terrestrial Relations Observatory mission, which over the course of their lifetime have viewed the sun from vantage points such as the ones shown here, on the other side of the sun from Earth.
7/13/16: Slow appearance of sunspots challenges theory.
Solar active regions consist of strongly magnetic sunspots and surrounding regions of more diffuse magnetic field. These regions are the origin of solar activity which controls space weather and causes beautiful phenomena such as aurora but in some cases also damage to satellites or power grids. Solar active regions are thought to be the result of magnetic flux concentrations - bundles of magnetic field lines - rising from deep in the solar interior and penetrating the surface. A team consisting of researchers from the Max Planck Institute for Solar System Research (MPS), The University of Göttingen, NorthWest Research Associates, and the High Altitude Observatory of the National Center for Atmospheric Research has now shown that these magnetic flux concentrations move upward through the solar interior at speeds of not more than about 150 m/s. This is much slower than predicted by the prevailing current model. full text
6/22/16: Acoustics researcher finds explanation for auroral sounds.
In 2012, a research group headed by Aalto University Professor Unto K. Laine proved that the source of sounds associated with the Northern Lights is located close to the ground at an altitude of approximately 70 metres. Now, by combining his measurements with the temperature profiles measured by the Finnish Meteorological Institute, Professor Laine has found an explanation for the mechanism that creates the sound.
5/9/16: Research result: The Sun’s magnetic field during the grand minimum is in fact at its maximum.
During a time period of the Maunder Minimum type the magnetic field may hide at the bottom of the convection zone. About 80 solar cycles seen from the surface, i.e. more than 1,000 years in solar time, modelled by means of a computer simulation. At 20-50 years in simulation time, a simulated grand minimum occurs, which in actual fact is the maximum of magnetic energy. Credit:Image courtesy of Aalto University.
4/19/16: From bright flare ribbons to coronal rain: High-resolution images capture a solar flare as it unfolds. Scientists at NJIT's Big Bear Solar Observatory have captured unprecedented images of a recent solar flare, including bright flare ribbons seen crossing a sunspot followed by 'coronal rain,' plasma that condenses in the cooling phase shortly after the flare, showering the visible surface of the sun where it lands in brilliant explosions. Credit: NJIT.
4/08/16: Solar Storm Researchers Prepare for the 'Big One' with New Urgency. At a recent conference in Washington, D.C. that drew space weather specialists from academia, the federal government, the military and private industry, Louis Lanzerotti, distinguished research professor at NJIT's Center for Solar-Terrestrial Research, summed up the implications of a massive, well-timed solar storm for today's technology-based, hyper-connected global society.