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:
“Spirit, that made those heroes dare
To die, and leave their children free,
Bid Time and Nature gently spare
The shaft we raise to them and thee.”
—Ralph Waldo Emerson (1803–1882)
“Our ancestors ... possessed a right, which nature has given to all men, of departing from the country in which chance, not choice has placed them.”
—Thomas Jefferson (1743–1826)