The sun is sending a slew of activity to Earth this week — and that could mean strong displays of the aurora, also known as ...

On Oct. 3, the sun released the most powerful solar flare this solar cycle, a colossal X9.05 eruption — and it's heading for Earth.

The X7.1-category blast caused a shortwave radio blackout over Hawaii and hurled a faint halo CME into space. "NOAA ...

A high-speed stream of solar wind from a large coronal hole is expected to cause moderate geomagnetic storms over the next ...

A strong geomagnetic storm is expected to hit Earth this week after a massive solar flare erupted from the sun, potentially ...

NASA has confirmed that the huge flare has also led to a massive expulsion of solar plasma and high energy particles (a ...

A solar flare erupted from a sunspot Tuesday night and is now considered the second strongest of the current solar cycle.