Throughout history, solar eclipses have been viewed as powerful and terrifying events. Many cultures believed the sudden darkness was a warning of disaster, death, or divine anger. These rare ...

The sun is an incomprehensibly gigantic, constantly roiling nuclear furnace—but some days are even busier than others. Based ...

The twin eruptions briefly disrupted radio signals across the dayside of Earth.

The moon will briefly hide Regulus in a dramatic occultation visible across parts of the eastern U.S.

Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our ...