The Italian astronomer Giovanni Domenico Cassini publishes his observations of Halley’s Comet, putting forward the revolutionary hypothesis that the comet is the same one observed by Tycho Brahe in 1577.
The Italian astronomer Giovanni Domenico Cassini publishes his observations of Halley’s Comet, putting forward the revolutionary hypothesis that the comet is the same one observed by Tycho Brahe in 1577.