The radiation probably originates from the scorching-hot wreckage left behind by a giant planet’s annihilation. This discovery stems from four decades of X-ray observations of the Helix Nebula ...

Denzel Washington and Jake Gyllenhaal on their record-breaking "Othello" HIMARS Strike on Russian Air Base Destroys Four Helicopters: Video What are wheat pennies, and why are they sometimes worth ...

Air is evacuated and the tube is filled with ... a phenomenon known as glow discharge. In general, gas-filled tubes can have other uses such as lightning — in the form of fluorescent, neon ...