A erupted with M1 and M6 class solar flares. Watch the fireworks in these views from NASA's Solar Dynamics Observatory.

NASA's Solar Dynamics Observatory captured a magnetic filament erupting on the Sun. The filament was "connected to sunspot ...

All 4K TVs offer sharp resolution, but great picture quality is about much more than pixel count. How a TV handles contrast, color accuracy, and brightness can make a significant difference in ...

Perhaps you've heard rumors about the death of physical media. Those rumors are greatly exaggerated. Tons of 4K UHD and Blu-ray movies and TV shows hit the shelves each month. And with all the ...