9th September 1892 Amalthea, a moon of Jupiter, is discovered by Edward Emerson Barnard using the 36 inch (91 cm) refractor telescope at...

15th August 1977 The Wow! signal is received by the Big Ear radio telescope at Ohio State University. The original record, preserved by...

29th July 1851 The asteroid Eunomia is discovered by Italian astronomer Annibale de Gasparis. It is the 12th largest object in the main...

IN THIS MONTH 22nd June 1633 The Roman Catholic Inquisition hands down its sentence and finds Italian astronomer Galileo Galilei guilty...

21st April 1702 Maria Kirch discovers a previously unknown comet becoming the first woman to make such a discovery. Dubbed the "Comet...

4th February 1600 Tycho Brahe and Johannes Kepler meet for the first time near Prague. Kepler arrived at Tycho’s new observatory, Benatek...

Happy New Year! Elizabeth Cocking continues this astronomical blog post sequence in 2023. Each month she looks back on astronomical...

23rd December 1672 Rhea, the second-largest moon of Saturn and the ninth-largest moon in the Solar System, is discovered by Giovanni...

Each month astronomical events and the births of people in history connected to astronomy are featured. Brush up on your knowledge!

NASA becomes operational (1958) ; Luna 3 photographs the far side of the Moon (1959) : the Parker solar probe approaches the Sun (2018)