Americans in at least 16 states could see heightened levels of ultraviolet (UV) radiation on Friday, according to a forecast ...

The sun just let out a powerful solar flare -- the most powerful since 2017, and among the most powerful recorded to date. It even affected communications on Earth, due to the effects of space ...

NASA’s Solar Dynamics Observatory captured this image of a solar flare – as seen in the bright flash on the top right – on Oct. 2, 2022. The image shows a subset of extreme ultraviolet light ...

SUMER’s spectral atlas is the best-ever analysis of the ultraviolet light from the Sun, spanning wavelengths from 670 to 1609 angstroms (67 to 160.9 nanometres).

What it is: The sun's outer atmosphere, as captured by the Extreme Ultraviolet Imager (EUI) on Solar Orbiter, a European Space Agency (ESA) spacecraft developed in collaboration with NASA.

The images were taken by the Solar Ultraviolet Imager (SUVI) on the GOES-17 satellite in August and September of 2018. The solar photos capture views of the middle corona from each side of the sun ...

Specifically, they used extreme UV light, which has very short wavelengths, shone in femtoseconds, which last a millionth of a billionth of a second.

The Sun emitted a strong solar flare, peaking at 7:57 p.m. EDT on Jan. 5, 2023. NASA’s Solar Dynamics Observatory, which watches the Sun constantly, captured an image of the event.

The sun has developed a massive “hole” 20 times larger than Earth, marking the second such occurrence in a week. The coronal hole is unleashing solar winds of 2.9 million km/h toward Earth ...