Dark neck is a common condition in which the skin on the neck (often the back of it) is darker than the rest of the body, perhaps with a band or line of dark color. In people with darker skin tones, ...

Scientists are homing in on the nature of a mysterious force called dark energy, and nothing short of the fate of the universe hangs in the balance. The force is enormous — it makes up nearly 70 ...

Dark energy, the mysterious force thought to be driving the ever-faster expansion of the universe, appears to be changing over time, according to new observations released Wednesday. If dark ...

Scientists are homing in on the nature of a mysterious force called dark energy, and nothing short of the fate of the universe hangs in the balance. The force is enormous—it makes up nearly 70% ...

The rest is composed of dark matter and dark energy, which are invisible but dominate the structure and evolution of the universe. Dark matter makes up most of the mass of galaxies and galaxy clusters ...

The app automatically changes the wallpaper when the dark theme is enabled or disabled. You can set a different image for dark theme or change the color/contrast ...