Nature photographers and other fans of planet Earth always look forward to the blue hour.

It was one of the largest and longest lived storms ever recorded in our Solar System.

Peering from the shadows, the Saturn-facing hemisphere of Mimas lies in near darkness alongside a dramatic sunlit crescent.

Saturn never shows a crescent phase from Earth.

On July 2 denizens of planet Earth could stand in the Moon's dark umbral shadow during South America's 2019 total solar eclipse.

To see the feathered serpent descend the Mayan pyramid requires exquisite timing

You can pack a lot of sky watching into 30 seconds on this tiny planet. Of course, the full spherical image timelapse video was recorded on planet Earth, from Grande Pines Observatory outside Pinehurst, North Carolina.

Sundials use the location of a shadow to measure the Earth's rotation and indicate the time of day.

Why does the right part of this image of the Moon stand out? Shadows.

Deep shadows create dramatic contrasts between light and dark in this high-resolution close-up of the martian surface.