Take Europa, for example. It's an icy world today and will stay that way for a long time. However, when the sun enters the red giant phase of its evolution in about 12 billion years, researchers ...

Thankfully, our sun's sunspot activity occurs along an approximate 11-year cycle, giving us some indication of when to expect this solar weather.

Here’s how it works. An artist's visualization of some of the spots on red giant XX Trianguli. (Image credit: Viktor Varga & Ádám Radványi (Moholy-Nagy University of Art and Design, Budapest)) ...

When the Sun runs out of hydrogen fuel and expands into a red giant, it will eventually encompass the innermost planets of the solar system, out to about Earth’s orbit.

These best-yet images of the nearby star R Doradus show giant plasma bubbles 75 times bigger than our sun rising and sinking on its surface. (Image credit: ALMA (ESO/NAOJ/NRAO)/W. Vlemmings et al ...

Giant 'senior citizen' sunspot on 3rd trip around the sun could break a century-old record Behold, 'The Beast': Gigantic animal-like plasma plume 13 times wider than Earth hovers over the sun ...