The next full moon over Mississippi rises April 12. Know when to find dark skies to watch the Lyrids meteor shower this month ...

Skywatchers across at least 18 states may have the chance to see the northern lights on Tuesday as a coronal mass ejection ...

Geomagnetic storms are measured on a five-point scale, ranging from G1 to ... another celestial event will arrive in the sky: a rare “smiley face,” if you will. You’ll have only a narrow ...

A "smiley face ... appears 5.9% to 6.9% smaller than an average full moon and 12.5% to 14.1% smaller than a supermoon, which happens when the full moon is at its closest point to Earth.

The northern lights appear when coronal mass ejections are hurled out by the sun, sending plasma and magnetic material to collide with Earth’s magnetic field. Particles flow along the currents to the ...

How a simple line drawing of a smiley face became a global shorthand ... Franklin Loufrani trademarked the now iconic smiling face symbol in 1971, he coined the term ‘Smiley’. Over the following five ...