Why would the sky look like a giant target? Airglow. Following a giant thunderstorm over Bangladesh in late April, giant circular ripples of glowing air appeared over Tibet, China, as pictured above. The unusual pattern is created by atmospheric gravity waves, waves of alternating air pressure that can grow with height as the air thins, in this case about 90 kilometers up. Unlike auroras powered by collisions with energetic charged particles and seen at high latitudes, airglow is due to chemiluminescence, the production of light in a chemical reaction. More typically seen near the horizon, airglow keeps the night sky from ever being completely dark.
The first full moon of the year was tonight! One down, many to go
"There are nights when the wolves are silent and only the moon howls."
Contemplate the Astronomical facts in this gif set… Its amazing how true it is…
The moon has been gorgeous lately! Take a moment to go look at it sometime.