Every step caused the sand to light up blue. That glow was bioluminescence -- a blue radiance that also lights the surf in this surreal scene captured last month at Meyer's Creek Beach in Oregon, USA.

What's that spot next to the Moon? Venus.

How great was the Great American Eclipse? The featured HDR image shows it to be perhaps greater than we knew.

Did you see it? One of the more common questions during a meteor shower occurs because the time it takes for a meteor to flash is typically less than the time it takes for a head to turn.