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Which way does the solar wind blow?

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IMAGE: (Top panel, from left to right) July 12, 2012 coronal mass ejection seen in STEREO B Cor2, SOHO C2, and STEREO A Cor2 coronagraphs, respectively. (Bottom panel) The same images.
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Credit: Talwinder Singh, Mehmet S. Yalim, Nikolai V. Pogorelov, and Nat Gopalswamy
The surface of the sun churns with energy and frequently ejects masses of highly-magnetized plasma towards Earth. Sometimes these ejections are strong enough to crash through the magnetosphere the natural magnetic shield that protects the Earth damaging satellites or electrical grids. Such space weather events can be catastrophic.
Astronomers have studied the sun s activity for centuries with greater and greater understanding. Today, computers are central to the quest to understand the sun s behavior and its role in space weather events. ....

San Diego , United States , Mangala Sharma , Nikolai Pogorelov , Vadim Roytershteyn Space Science Institute , University Of Alabama , Texas Advanced Computing Center , Space Systems Research Corporation , National Science Foundation , Lawrence Berkeley National Laboratory , Geospace Sciences , Division Of Atmospheric , Marshall Space Flight Centers , Predictive Science Inc , San Diego Supercomputing Center , Promoting Research , Space Weather , Space Science , Program Director , Predictive Science , Space Systems Research , Astrophysical Journal , Michael Gedalin , Ben Gurion University , Vadim Roytershteyn , Space Science Institute ,

Looking Ahead to Future Eclipses

While the lunar and annular solar eclipses are fresh in our minds and travel is gradually returning to some semblance of normality, it’s a good idea to begin to think ahead to future eclipse photo opportunities (especially total solar eclipses) in the next few years. Why plan so far ahead? Unfortunately for most of us, the opportunities to photograph a solar eclipse within our ....

United States , Fred Espenak , Eclipse Almanac , ஒன்றுபட்டது மாநிலங்களில் ,

UMass Amherst astronomer reveals never-before-seen detail of the center of our galaxy

Credit: X-ray: NASA/CXC/UMass/Q.D. Wang; Radio: NRF/SARAO/MeerKAT
AMHERST, Mass. - New research by University of Massachusetts Amherst astronomer Daniel Wang reveals, with unprecedented clarity, details of violent phenomena in the center of our galaxy. The images, published recently in
Monthly Notices of the Royal Astronomical Society, document an X-ray thread, G0.17-0.41, which hints at a previously unknown interstellar mechanism that may govern the energy flow and potentially the evolution of the Milky Way.
The galaxy is like an ecosystem, says Wang, a professor in UMass Amherst s astronomy department, whose findings are a result of more than two decades of research. We know the centers of galaxies are where the action is and play an enormous role in their evolution. And yet, whatever has happened in the center of our own galaxy is hard to study, despite its relative proximity to Earth, because, as Wang explains, it is obscured by a dense fog of gas and dust. Re ....

Daniel Wang , Daegan Miller , Monthly Notices Of The Royal Astronomical Society , University Of Massachusetts Amherst , Chandrax Ray Observatory Galactic Center , Massachusetts Amherst , Monthly Notices , Royal Astronomical Society , Hubble Space , X Ray Observatory , Chandrax Ray Observatory , Galactic Center , Space Planetary Science , டேனியல் வாங் , டீகன் மில்லர் , மாதாந்திர அறிவிப்புகள் ஆஃப் தி அரச வானியல் சமூகம் , பல்கலைக்கழகம் ஆஃப் மாசசூசெட்ஸ் மஹேர்ஸ்ட , மாசசூசெட்ஸ் மஹேர்ஸ்ட , மாதாந்திர அறிவிப்புகள் , அரச வானியல் சமூகம் , ஹப்பிள் இடம் , எக்ஸ் ராய் கண்காணிப்பு , விண்மீன் மையம் ,

Deep oceans dissolve the rocky shell of water-ice planets

Laboratory experiments allow insights into the processes under the extreme pressure and temperature conditions of distant worlds ....

Taehyun Kim , Sergio Speziale , German Research Centre For Geosciences , Argonne National Laboratory , Yonsei University Of Seoul , University Of Arizona , Yonsei University , Research Centre , Advanced Photon Source , United Statesa , Scanning Electron Microscopy , Earth Science , Planets Moons , ஜெர்மன் ஆராய்ச்சி மையம் க்கு புவி அறிவியல் , ஆர்கோன் தேசிய ஆய்வகம் , பல்கலைக்கழகம் ஆஃப் அரிசோனா , ஆராய்ச்சி மையம் , ஸ்கேனிங் எதிர் மின்னணு நுண்ணோக்கி ,