The “Black Widow” pulsar is moving through the galaxy at a speed of almost a million kilometers per hour. A bow shock wave due to this motion is visible to optical telescopes, shown in this image as the greenish crescent shape. The pressure behind the bow shock creates a second shock wave that sweeps the cloud of high-energy particles back from the pulsar to form the cocoon.
Catatumbo Lightning - At the point where the Catatumbo River meets Lake Maracaibo in Venezuela, a constant lightning storm illuminates the sky for around 10 hours a night, for almost half the nights out of the year.
Stunning image showing the fusion of three galaxies by astronomers called "The Bird", this triple galaxy (composed of two massive spiral galaxies and a third irregular galaxy) lies 650 million light years in Sagittarius. The resulting mega galaxy is called Tinker Bell Triplet.
Fire rainbows are the rarest of all naturally occurring atmospheric phenomena. For a fire rainbow to occur, cirrus clouds must be 20,000 feet in the air with the precise amount of ice crystals, and the sun must hit the clouds at 58 degrees.
These photographs of Yellowstone National Park by Dave Lane are so gorgeous it’s difficult to believe they’re from real life. Once a year They crosss the bridge From one end of the world To the other There in the horizon They meet.