Tag: SDO
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Ahead of total solar eclipse, scientists use spacecraft data to predict the Sun’s corona
On April 8, a total solar eclipse will sweep across the continental United States — the first since 2017 and the last until Aug. 12, 2045. During totality, or the moment at which the Moon is completely covering the Sun, the Sun’s outer atmosphere, called the corona, and other prominences become visible to the naked…
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Scientists discover first long-lasting radio bursts above sunspots
A team of NASA-funded scientists recently discovered long-lasting radio signals above sunspots — regions of the Sun’s surface where the magnetic field is so strong that surface temperatures are reduced and surrounding atmospheric pressure decreases, creating dark spots on the solar surface. The team’s results show the radio signals are emanating from the sunspots in…
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Coronal heating & solar wind, returns from solar missions shed light on Sun’s mysteries
It’s one of the greatest mysteries in solar physics. Dubbed the coronal heating problem, the issue arises from the fact that the solar corona, or Sun’s atmosphere, is millions of degrees hotter than the layers directly below it. This goes against modeling that suggests the corona should be far cooler than the layers below it.…
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NASA, JAXA look to Sun to understand life in other star systems
The Sun is both creator and destroyer. The one that can foster life one second and eliminate it the next. Most people are familiar with the harmful and hazardous effects the Sun can have to life on Earth if solar flares and Coronal Mass Ejections, and their associated radiation, are delivered in just the right…
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NASA, JAXA look to Sun to understand life in other star systems
The Sun is both creator and destroyer. The one that can foster life one second and eliminate it the next. Most people are familiar with the harmful and hazardous effects the Sun can have to life on Earth if solar flares and Coronal Mass Ejections, and their associated radiation, are delivered in just the right…
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Carrington Event still provides warning of Sun’s potential 161 years later
On 28 August 1859, a series of sunspots began to form on the surface of our stellar parent. The sunspots quickly tangled the Sun’s magnetic field lines in their area and produced bright, observed solar flares and one — likely two — Coronal Mass Ejections, one major. The massive solar storm impacted our planet on…
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Carrington Event still provides warning of Sun’s potential 161 years later
On 28 August 1859, a series of sunspots began to form on the surface of our stellar parent. The sunspots quickly tangled the Sun’s magnetic field lines in their area and produced bright, observed solar flares and one — likely two — Coronal Mass Ejections, one major. The massive solar storm impacted our planet on…