The Sun follows a 22-year magnetic cycle, with solar activity rising and peaking roughly every 11 years. But when conditions ...

Thanks to a recent geomagnetic storm, some Americans will be able to see the northern lights on Dec. 8 and Dec. 9.

What are Stealth Solar Storms? Stealth solar storms, also known as stealth coronal mass ejections, are CMEs that evade detection until they impact Earth. Unlike typical solar flares and CMEs, which ...

NASA and ESA images reveal unusual activity on interstellar comet 3I/ATLAS as it heads for its closest Earth approach this ...

Scientists can usually spot coronal mass ejections before they affect Earth—but this one snuck past coronagraphs and ...

Here's the biggest science news you need to know. Kilauea volcano erupts with lava fountains and ash, engulfing a U.S.

Discover what happens during a solar flare: sun eruptions, coronal mass ejection impacts, and space weather effects on Earth ...

The ESA's JUICE probe has for the first time photographed interstellar comet 3I/ATLAS in an active state, revealing a glowing ...

New images from ESA's Juice probe and Hubble reveal a rare double tail on interstellar comet 3I/ATLAS as it approaches Earth ...

NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. Here's a look at the latest photo of the intriguing ...

Solar flares and other activity can disrupt radio communications, power grids and navigation signals, according to NASA.

An international group of researchers has reexamined the earliest written account of a total solar eclipse, dating back to 709 BCE, by combining historical geography and modern astronomy. Their study ...