How accurate are past records of sunspots? In a new study published in The Astrophysical Journal, a team of multinational researchers examined the historical record and found that after the unusual ...

A scientist who claims waning solar activity in the next 15 years will trigger what some are calling a mini ice age has revived talk about the effects of man-made versus natural disruptors to Earth's ...

Sunspot cycles Images captured by SOHO's Extreme Ultraviolet Imaging Telescope demonstrate the changing face of our Sun. The brightest images occur during the solar maximum when the Sun’s magnetic ...

A 417-year-old drawing by Johannes Kepler has just helped solve a major solar puzzle. The 1607 sketch features sunspots that give scientists important insights into how the Sun behaved during the ...

A nearby sun-like star that seems to have paused its own cycles and entered a period of rare starspots may offer an answer to a centuries-old mystery, researchers say. The number of sunspots on our ...

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 ...

The Northern Lights are normally seen in various high-latitude parts of the world, including polar regions and in the skies over Britain, but according to new research from the University of Reading, ...

We discuss how, in the 1970's, Eddy took clues from the historical researches of Spörer and Maunder in the 19th century to draw attention to the virtual absence of sunspot activity between 1645 and ...