Sunspots change in number depending on how much magnetic activity the solar dynamo generates. But there's not total chaos: These changes occur in a cycle, which lasts about 11 years on average. The sun also experiences extended ...
Astronomy
Oct 10, 2023
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In 1859, the Carrington Event, the most intense geomagnetic storm in recorded history, created spectacular auroral displays around the globe, illuminating the night skies so brightly that birds began singing and laborers ...
Astronomy
Jul 18, 2023
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The number of sunspots on our sun typically ebbs and flows in a predictable 11-year cycle, but one unusual 70-year period when sunspots were incredibly rare has mystified scientists for 300 years. Now, a nearby sun-like star ...
Astronomy
Mar 24, 2022
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973
Andrés Muñoz-Jaramillo of Southwest Research Institute and José Manuel Vaquero of the University of Extremadura have developed a new technique for looking at historic solar data to distinguish trustworthy observations ...
Space Exploration
Dec 10, 2018
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98
The sun might emit less radiation by mid-century, giving planet Earth a chance to warm a bit more slowly but not halt the trend of human-induced climate change.
Space Exploration
Feb 7, 2018
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856
The spots on the surface on the sun come and go with an 11-year periodicity known as the solar cycle. The solar cycle is driven by the solar dynamo, which is an interplay between magnetic fields, convection and rotation. ...
Astronomy
Jan 8, 2018
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143
The northern lights are nature's very own magnificent light show. They are the mesmerising end result of electrically charged particles from the sun colliding with the Earth's upper atmosphere. Though more frequently witnessed ...
Space Exploration
Feb 6, 2017
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Britain may lose the magic of the Northern Lights by the middle of the century due to major shifts in solar activity, scientists have discovered.
Space Exploration
Feb 1, 2017
2
351
The study of the sun's long-term variation over a millennium by means of super computer modelling showed that during a time period of the Maunder Minimum type, the magnetic field may hide at the bottom of the convection zone.
Space Exploration
May 9, 2016
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22
Records of Spanish shipwrecks combined with tree-ring records show the period 1645 to 1715 had the fewest Caribbean hurricanes since 1500, according to new University of Arizona-led research. The study is the first to use ...
Earth Sciences
Mar 7, 2016
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509
