The Sun by radiation is losing energy at a tremendous rate. The Earth receives about one two thousand millionth part of this, and other planets, satellites and asteroids their tiny share. The rest travels out into the depths of space, presumably to be lost forever so far as the solar system is concerned.
©1931 by Iowa State Teachers College
"Universe May Not Be Running Down,"
Science Bulletin: Vol. 3:
5, Article 8.
Available at: https://scholarworks.uni.edu/science_bulletin/vol3/iss5/8