The red arrow is aiming at the Light Bulb icon and hitting the target. Success And Strategy Concept. 4K Footage Video. Royalty-free licenses let you pay once to use copyrighted images and video clips ...

Scientists are working to understand the curious phenomena of red sprites, green ghosts and blue jets high above ...

Give your house a cozy, cottage core makeover and use a hot glue gun to create some DIY mushroom lights. These whimsical ...

A sudden burst of red light flickered above a thunderstorm, and for a brief moment, Earth’s upper atmosphere revealed one of its most elusive secrets. From 250 miles above the surface, aboard the ...