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I am the thing most needed in all the world, but so fast nothing can catch me.
I myself can go the distance, even until the nearest star.
Articles have been written about me, though not one in English.
I give a soothing ending to an evening's rest.

But be warned, I stand in judgment of all things measurable,
and this day, I could be at your throat.

What am I?

Hint:

The title references a song whose sister knows me. Ask her, and she will show you the way.

I am the thing most needed in all the world, but so fast nothing can catch me.
I myself can go the distance, even until the nearest star.
Articles have been written about me, though not one in English.
I give a soothing ending to an evening's rest.

But be warned, I stand in judgment of all things measurable,
and this day, I could be at your throat.

What am I?

Hint 1:

The title references a song whose sister knows me. Ask her, and she will show you the way.

Hint 2:

I am not light, but light and her maker are some 28.6% of my being

I am the thing most needed in all the world, but so fast nothing can catch me.
I myself can go the distance, even until the nearest star.
Articles have been written about me, though not one in English.
I give a soothing ending to an evening's rest.

But be warned, I stand in judgment of all things measurable,
and this day, I could be at your throat.

What am I?

I am the thing most needed in all the world, but so fast nothing can catch me.
I myself can go the distance, even until the nearest star.
Articles have been written about me, though not one in English.
I give a soothing ending to an evening's rest.

But be warned, I stand in judgment of all things measurable,
and this day, I could be at your throat.

What am I?

Hint:

The title references a song whose sister knows me. Ask her, and she will show you the way.