NOAA warns of likely G1/G2-class geomagnetic storm on Sunday, March. 29, through Monday, March 30, as a coronal mass ejection ...

The upcoming partial solar eclipse on March 29 is the perfect time to watch the moon hide and then reveal dark patches on the surface of the sun. When you purchase through links on our site, we may ...

Scientists have found a way to spot active regions of the sun, below the solar surface, a full day or two before they erupt as sunspots on our nearest star, researchers said. Sunspots, which are ...

As Solar Cycle 25 peaks, learn how increased sunspots and ionospheric ionization are boosting shortwave radio propagation.

Observing an eclipse of the sun is always fascinating, but on March 29, 2025 — when a partial solar eclipse is visible in the Northern Hemisphere — there will be an extra reason to do so. As well as ...

Each pixel of this image of a sunspot is roughly 10 kilometers. The photo was captured by the Daniel K. Inouye Solar Telescope in Hawai’i using a new instrument. (Credit: VTF/KIS/NSF/NSO/AURA) SPACE ...

Sunspot AR3184 erupted with an X1.9-class solar flare. NASA's Solar Dynamics Observatory (SDO) captured the fireworks. The sunspot has been very active since it rotated into SDO's view. Credit: ...

WASHINGTON — When the sun sneezes, it's Earth that gets sick. It's time for the sun to move into a busier period for sunspots, and while forecasters expect a relatively mild outbreak by historical ...

Every eleven years, the sun's magnetic field flips. Sunspots—dark, cooler regions on the sun's surface that mark intense ...