Gradual dark shallow rifts in nails eventually leading to cracks as protein fibers within nail beds are destroyed.

The cooling sun is sinking into a dark rift of clouds on the horizon.

Further to the northwest, there is a dark rift and another bright patch.

Those dark rifts are empty of stars; they're dozens of light-years long.

Appearing in close proximity to the dark rift were the three belt stars of Orion.

One can imagine the primitive Olmec, looking up at the night sky, pointing to the dark rift of the galaxy as a cosmic snake.

Besides, the Mayan prophesy points to the dark rift, not a celestial projectile.

The dark rift was also considered to be a celestial serpent.

By midnight tonight, the dark rift will have moved into alignment directly over the center point of this field.

Directly overhead is the dark rift, running like a jagged cosmic river of purple gas across the very center of the magenta cosmos.