Now black holes are dark against a dark sky.

One of them you heard about dark matter, dark energy.

So in terms of the big questions what is dark matter? What is dark energy?

Stumbling in the Dark

The sky turned dark.

Dark green.

Dark green.

Dark green.

Dark green.

It's dark. High noon on Titan is as dark as deep earth twilight on the Earth.

So, in quantum mechanics, of course, you have dark energy and dark matter.

The boy feared the dark.

The sky was completely dark.

The Dark Side of Physics

The Japanese have dark eyes.

And the moon becomes dark,

Very sad, dark.

Shrugging our shoulders in the dark?

So, these are the Dark Ages.

The Dark Matter of Financial Globalization

The Dark Side of Defending Freedom

The Dark Side of Self Determination

Who has dark circles?

It's all dark outside.

It's called dark matter.

It was so dark.

It was getting dark.

It's totally dark outside.

Her eyes are dark.

Dark green (in colour).

Dark green (in colour).

Dark green with foliage.

Dark green with foliage.

Dark green in color .

Dark green in color .

dark green in color.

dark green in color.

And finally, for future endeavors, there are telescopes being designed specifically to address the questions of dark matter and dark energy ground based telescopes, and there are three space based telescopes that are in competition right now to be launched to investigate dark matter and dark energy.

All cats are grey in the dark.

Giraffes are this desire in the dark.

I like to be in the dark.

Africa was once called the Dark Continent.

They got to the hotel after dark.

She is very afraid of the dark.

I arrived at the village before dark.