At more than one million degrees, the sun's atmosphere—the corona—is incredibly hot; but not everywhere. Time and again, huge structures of significantly cooler solar plasma—about 10,000 degrees—appear within the corona. ...
Astronomy
Apr 22, 2026
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18
Using data collected by NASA's Parker Solar Probe during its closest approach to the sun, a University of Arizona-led research team has measured the dynamics and ever-changing "shell" of hot gas from where the solar wind ...
Space Exploration
Jan 30, 2026
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61
A research team from the Yunnan Observatories of the Chinese Academy of Sciences (CAS) has detailed the physical characteristics of chromospheric jets in and around a sunspot, using high-resolution observations from the New ...
Astronomy
Nov 12, 2025
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36
A team of solar physicists has released a new study shedding light on the fine-scale structure of the sun's surface. Using the unparalleled power of the Daniel K. Inouye Solar Telescope, built and operated by the National ...
Astronomy
Jun 3, 2025
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108
If you happen to be enjoying a sunny day, thank the bright surface of the sun, known as the photosphere. At a piping hot temperature of about 5,800 K, the photosphere provides nearly all the sunlight Earth receives. But for ...
Astronomy
Apr 24, 2025
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49
The entire solar disk in unprecedented detail—this is shown by images of the visible surface of the sun, which researchers at the Max Planck Institute for Solar System Research have now created from 25 individual images taken ...
Astronomy
Nov 22, 2024
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62
There is a profound mystery in our sun. While the sun's surface temperature measures around 10,000 degrees Fahrenheit, its outer atmosphere, known as the solar corona, measures more like 2 million degrees Fahrenheit, about ...
Plasma Physics
Oct 11, 2024
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