Evening Republican, Volume 14, Number 33, Rensselaer, Jasper County, 8 February 1910 — Hot Planets. [ARTICLE]

Hot Planets.

Jupiter, Saturn, Uranus and Neptune —the four outer planets—are hotter than the earth. Recent observations at the Lowell observatory, secured in the form of photographs of planetary spectra, show that there is oxygen in the atmospheres of all four, and that in the cases of Uranus and Neptune, hydrogen and perhaps helium are atmospherically present. The outer planets have water vapor as the principal constituent of their atmospheres. They probably consist of a nucleus hot to its surface, veiled in dense, unbroken clouds, floating in an atmosphere largely composed of steam.