Spectral lines
About 98 percent of the cosmos is composed of the two simplest elements, hydrogen and helium, mostly in the form of giant gas clouds and stars.
Apr 22 2012 | Posted in Tom Burns | Read More »
About 98 percent of the cosmos is composed of the two simplest elements, hydrogen and helium, mostly in the form of giant gas clouds and stars.
Go out and look at any star in the nighttime sky, and you are looking at an incomprehensibly huge hydrogen bomb. Go ahead. Look. I’ll wait.