WILL THE SUN EVER GROW COLD?

Auckland Star, Volume LXVIII, Issue 49, 27 February 1937, Page 3 (Supplement)

WILL THE SUN EVER GROW COLD?

There can be no doubt that the answer to this question is yes. The sun, the earth and the moon are all made of the same stuff, and they are all cooling down according to the same laws. The moon, no doubt, is much the coldest of these three, but that is because it is the smallest, and small tilings cool down much more quickly than large things, because small things, in proportion to the stuff that is in them, have such a large surface to lose their heat by. The earth is bigger than the moon, and therefore not yet so cold. The great planet Jupiter iti very much bigger than the earth, and is still so hot that it probably makes a little light of its own besides what it reflects from the sun. The sun is very much bigger even than Jupiter, and so has not tooled down anything like so much. But if we compare it with other stars we can be sure that the sun is cooling, and one day it must become frozen.