Solar activity has been on an overall decline since the ‘80s and scientists were expecting us to plunge into a historic low ...

The Sun's activity is rising again after decades of decline, surprising scientists and raising concerns about space weather.

The Sun seems like a constant, reassuring presence day to day, but it's actually fairly tempestuous and changeable. One particular change it undergoes is what we call the solar cycle. Every 11 years ...

NASA scientists have determined that the Sun has increased in solar activity, defying expectations that it would enter a more ...

From the 1980s thru 2008, scientists observed that nuclear activity inside the Sun was continuously trending downward, and it was expected that this would continue. However, a new study by the ...

A triple threat of spacecraft will launch later this month to study the influence of the Sun that causes space weather events on Earth and in orbit, leading to advanced warning and a better ...

Most places on Earth have seasons because our planet is on a tilt as it orbits the sun. But our star also has its own version of seasons that affect life on Earth—and new astronomical research is ...

First, let’s discriminate between expansion and expulsion. Expansion happens because the thermal pressure from the increased energy production in the Sun’s interior exceeds the gravitational force ...