sunspots are regions on the sun's photosphere that appear darker than surrounding areas because they are cooler, usually by one or two thousand degrees Celsius. These spots are temporary phenomena caused by magnetic activity ...
Astronomy
Dec 18, 2017
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In February 2020, NASA's Solar Dynamics Observatory—SDO—is celebrating its 10th year in space. Over the past decade the spacecraft has kept a constant eye on the sun, studying how the sun creates solar activity and drives ...
Space Exploration
Feb 12, 2020
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Researchers at the Universities of Leeds and Chicago have uncovered an important mechanism behind the generation of astrophysical magnetic fields such as that of the Sun.
Astronomy
May 22, 2013
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What will the climate be like for Russia and Europe in 15 to 20 years? Will there be weather abnormalities in the coming decades? Will some areas experience increasingly severe winters, while the others experience hot summers? ...
Earth Sciences
Dec 2, 2015
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Streaming into the solar system at nearly the speed of light, galactic cosmic rays (GCRs) are a high-energy mix of protons, electrons, and atomic nuclei. As they pass into reach of the outflowing solar wind, the propagation ...
Space Exploration
Nov 13, 2012
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0
The movement of cosmic ray particles across space, such as electrons and protons, is influenced by the sun's magnetic field, causing fluctuations in the intensity of galactic cosmic rays (GCRs) reaching Earth in response ...
Astronomy
Jun 8, 2023
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122
Some 50 miles up in the sky begins a dynamic region of the atmosphere known as the ionosphere. The region is filled with charged particles created by extreme ultraviolet radiation from the sun. At the base of the ionosphere, ...
Space Exploration
Jul 5, 2011
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A solar telescope that captures images of the entire disk of the Sun, monitoring eruptions taking place simultaneously in different magnetic fields in both the photosphere and chromosphere, is now being installed beside the ...
Space Exploration
Jun 28, 2018
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(PhysOrg.com) -- Tight double-star systems might not be the best places for life to spring up, according to a new study using data from NASA's Spitzer Space Telescope. The infrared observatory spotted a surprisingly large ...
Astronomy
Aug 23, 2010
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0
(PhysOrg.com) -- The corona is the hot outer region of the sun's atmosphere. The corona is threaded by magnetic fields that loop and twist upwards from the sun's surface, driven by motions of its dense atmosphere.
Astronomy
Dec 11, 2009
1
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