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, ...

The ultimate tattoo commitment is a neck tattoo. Ink on your neck is wildly visible—and, at times, stigmatized. But no one can deny that a neck tattoo is undeniably badass. Yet heavily inked ...

Evidence suggests that we are suspended in a cosmic sea of dark matter, a mysterious substance that shapes galaxies and large structures in the universe but is transparent to photons, the carriers ...

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 ...

Dark spots on the skin are usually not a cause for concern, but some people may choose to get rid of them for cosmetic reasons through laser treatment, microdermabrasion, and other methods. Dark ...

To find the best pillows for neck pain that alleviate muscle tension and promote proper alignment, we spent hours comparing options from top sleep brands and relied on our editors’ testing insights.

Have you tried treating dark spots on your own without getting the results you want? Do you see new dark spots appear as others fade? If you answered yes, you’re not alone. Darks spots and patches ...

Some scientists think so, but others have challenged the claim that so-called "dark oxygen" is being produced in the lightless abyss of the seabed. The discovery -- detailed last July in the ...

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 energy is ...

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% ...