In this month: March 2022
5th March 1616 On this day in 1616 the Roman Catholic Church adds "" (On the Revolutions of the Heavenly Spheres) by Nicolaus...
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Elizabeth Cocking
Jan 31, 20224 min read
In this month: February 2022
Astronomical happenings from the past and the birthdays of astronomers past and present. 19th February 1787 The first observation is...
Elizabeth Cocking
Jul 31, 20214 min read
In this month: August 2021
15th August 1977 The Wow! signal is received by the Big Ear radio telescope at Ohio State University. The original record, preserved by...
Elizabeth Cocking
Dec 31, 20203 min read
In this month: January
Happy New Year! Elizabeth Cocking continues this astronomical blog post sequence in 2023. Each month she looks back on astronomical...
Elizabeth Cocking
Nov 30, 20202 min read
In this month: December
23rd December 1672 Rhea, the second-largest moon of Saturn and the ninth-largest moon in the Solar System, is discovered by Giovanni...
Elizabeth Cocking
Sep 30, 20203 min read
In this month: October
NASA becomes operational (1958) ; Luna 3 photographs the far side of the Moon (1959) : the Parker solar probe approaches the Sun (2018)
Elizabeth Cocking
Dec 31, 20192 min read
In this month: January
7 January 1610 Galileo discovers four moons orbiting the planet Jupiter. Looking at what he thought were a group of stars, he noted the...
Elizabeth Cocking
Nov 1, 20192 min read
In this month: November
27th November 1783 The first reference to black holes is mentioned by John Michell, an English natural philosopher, in a paper for the...
Elizabeth Cocking
Aug 31, 20192 min read
In this month: September
26th September 1905 Einstein’s Theory of Special Relativity is published. It is the generally accepted and experimentally confirmed...
Elizabeth Cocking
Mar 2, 20192 min read
In this month - March
25th March 1655 Titan, Saturn’s largest moon was discovered by Dutch astronomer Christiaan Huygens. Titan is considered the most...
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