The Grimdark Universe has battles among the stars -- but how do the different armies get around those same stars? Time to ...

Sunspot AR3663 erupted with powerful X1.6 and M4 solar flares. NASA's Solar Dynamics Observatory captured the fireworks.

Researchers have identified a newly recognized type of extremely energetic particles located in the Sun’s upper atmosphere, revealing a phenomenon that had not been detected before. Solar scientists r ...

The Sun’s most violent flares are turning out to be even more extreme than I, or many solar physicists, had imagined. By ...