The sun is Earth's closest star, yet its beauty is too intense to appreciate with the naked eye. Here are some of the most stunning solar images that our satellites and telescopes have captured.

A powerful geomagnetic storm illuminated auroras that lit the skies over Earth on Thursday (Oct. 9) after X 2 solar flare ...

The passing of comet Tsuchinshan-Atlas is close enough to Earth, an estimated 44 million miles away, to see with the naked ...

Skywatchers in the Northern Hemisphere have been treated to a stunning celestial display with the recent appearance of comet C/2023 A3 (Tsuchinshan-ATLAS).

New photos of comet Tsuchinshan-ATLAS appear to show a faint "anti-tail" pointing away in the wrong direction. The puzzling ...

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 ...

This rare sighting in the region was due to a G4 geomagnetic storm that reached Earth, triggered by a coronal mass ejection ...

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

It's not too often the skies are awash in pink and purple. But that's what happened on Thursday when northern lights soared ...

The NASA/ESA Hubble Space Telescope has provided a dramatic and colorful close-up look at one of the most rambunctious stars ...

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 ...

For the second time in as many weeks, a “severe” geomagnetic storm produced a spectacular northern lights display for ...