Evening Republican, Volume 19, Number 212, Rensselaer, Jasper County, 7 September 1915 — Where Do Comets Come From? [ARTICLE]

Where Do Comets Come From?

Prof. Elis Stromgren, director of the Copenhagen observatory, has carried out, with the aid of Mr. J. Braae, an investigation to determine whether comets come originally from Interstellar space, as has been commonly supposed, or originate within the solar system. His method of research involves the backward computation of planetary perturbations for eight comets. The conclusion reached is ♦hat all comets heretofore observed have originated within the solar system.