And, after two-plus weeks hidden on the back side of the sun, that same colossal sunspot group is about to point toward Earth once again. Though the sunspot cluster isn’t as big as it once was ...

CHARLOTTE, USA - MAY 10: A view of an unusual sun activity created a sunspot, that is responsible ... [+] for a G4 Geostorm on Earth, the last time this magnitude happened was 20 years ago in ...

Astronomers began recording sunspot numbers as early as 165 BCE, albeit with gaps in the Middle Ages and the 15th century.

30,708 people played the daily Crossword recently. Can you solve it faster than others?30,708 people played the daily Crossword recently. Can you solve it faster than others?

That’s not changed. “Around May, June and July when these articles started coming out the sunspot number was really high, but in the last few months it’s come back down,” said Dr. Ryan ...

Astronomers modeled sunspot activity on a nearby red giant star to learn about its chaotic interior. Sunspots, which are temporarily darkened areas on the surface of the sun, are the result of ...

The Sunspot Solar Electric Cooking system is the winner of the 2nd Renewable Transformation Challenge, organized by Elsevier and the International Solar Energy Society (ISES). Compared to other ...