Solar flares are flashes of ultraviolet and X-ray radiation released from active areas of the sun's surface, usually sunspots. They are classed by power on a scale of A, B, C, M, and X-class, where X ...

Star gazers can expect more glimpses of the northern lights as the sun reaches its solar maximum, causing more geomagnetic storms.

NASA is launching a coding competition to get some much-needed help with organizing images from April's solar eclipse for the ...

NASA and NOAA have declared the Sun's solar maximum, noting increased sunspot activity and heightened solar events that influence Earth's space weather. This period is linked to significant ...

When sunspots erupt at nearly the same time, it could be something known as "sympathetic solar flares." A double eruption ...

Dr Laura Hayes discusses breakthroughs in heliophysics and how the weather caused by the sun's activities is an important area of study.

A severe geomagnetic storm is expected to reach Earth on Thursday, which could bring an increased chance of auroras and may ...

A strong geomagnetic storm brought the aurora to southern Colorado last night. Here's a look at the event through pictures ...

In a teleconference with reporters on Tuesday, representatives from NASA, the National Oceanic and Atmospheric Administration ...

Astronomers captured spectacular images of Comet A3, or Tsuchinshan-ATLAS, as it passed about 44 million miles from Earth on ...

"Artwork in the sky." Long Islanders were looking up this week as the Northern lights elicited awe. See your photos here.