In Nature
Most interstellar hydrogen is in the form of atomic hydrogen because the atoms can seldom collide and combine. They are the source of the important 21 cm hydrogen line in astronomy at 1420 MHz.
Read more about this topic: Nascent Hydrogen
Famous quotes containing the word nature:
“It was his nature to suppose,
To receive what others had supposed, without
Accepting. He received what he denied.
But as truth to be accepted, he supposed
A truth beyond all truths.”
—Wallace Stevens (1879–1955)
“Speaking thick, which nature made his blemish,
Became the accents of the valiant;
For those that could speak low and tardily
Would turn their own perfection to abuse
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—William Shakespeare (1564–1616)