Tuesday, 7 December 2021


On the anniversary of the discovery of a pair of barred-spiral galaxies in 1785 by Anglo-German astronomer by William Herschel whilst observing the night sky in Leo Minor, Edwin Powell Hubble, namesake of the space telescope, first found evidence, using Cepheid variables-whose periodic pulsations can be used to measure cosmic distances-that the Universe extends far beyond our own Milky Way and that nebulae were far too distant and were in fact galaxies in their own right. Definitively demonstrating his proof the following year and though contrary to scientific consensus at the time that the Universe was our own galactic skies some researchers-Hubble included, harboured suspicions that the Cosmos was a much bigger place since the conjectures of Immanuel Kant in his 1755 treatise on the General History of Nature and Theory of the Heavens, positing that the Solar System is a smaller reflection of the fixed stars.