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July 31, 2020

13th August 1898

The asteroid Eros is discovered by the German astronomer Gustav Witt at the Urania Observatory in Berlin, and independently on the same day by Auguste H.P. Charlois in Nice, France.

The asteroid, or to give its minor planet designation, 433 Eros, is approximately 16.8 km in diameter, rotates once every 5...

May 31, 2020

2 June 1966   

Surveyor 1, the first of the Surveyor robotic spacecraft, soft lands on the Moon. It was the first American spacecraft to achieve a soft landing on an extra-terrestrial body. NASA’s Surveyor Program sent seven robotic spacecraft to the surface of the Moon, its primary goal was to demonstrate the feas...

March 31, 2020

12 April 1633

The inquisition of Galileo by the Roman Catholic church begins. He was ordered to turn himself in to the Holy Office to begin trial for holding the belief that the Earth revolves around the Sun, which was deemed heretical by the Catholic Church. He was found guilty and agreed to stop teaching and spent the...

March 1, 2020

7 March 1831

The Royal Astronomical Society receives its Royal charter from King William IV. The society was founded in 1820 as the Astronomical Society of London to promote astronomical research. At that time, most members were 'gentleman astronomers' rather than professionals. In 1915 A Supplemental Charter granted by...

December 31, 2019

7 January 1610

Galileo discovers four moons orbiting the planet Jupiter. Looking at what he thought were a group of stars, he noted the objects appeared to move in a regular pattern and realised they were in orbit around Jupiter. Today, Jupiter’s four largest satellites—Io, Europa, Ganymede, and Callisto—are named the G...

November 1, 2019

27th November 1783

The first reference to black holes is mentioned by John Michell, an English natural philosopher, in a paper for the Philosophical Transactions of the Royal Society of London. He called them "dark stars". Michell suggested that there might be many "dark stars" in the universe, and today astronomers bel...

September 30, 2019


31st October 1992

Pope John Paul II pardons Galileo for his views. The Catholic church condemned Galileo in 1633 for his subversive views, namely that the Earth revolved around the Sun. He lived under house arrest for the rest of his life. Pope John Paul II formally apologized for the "Galileo Case" in the first o...

August 31, 2019

26th September 1905

Einstein’s Theory of Special Relativity is published. It is the generally accepted and experimentally confirmed physical theory regarding the relationship between space and time and contains one of the most famous equations, e=mc2, which in simple terms means if you multiply a specific amount of mass...

July 18, 2019

This month we celebrate the 50th anniversary of Apollo 11 landing on the Moon with a few little known facts of the Apollo missions. Where were you when the “one small step for man” was taken?

Australia played an important role in the historic Apollo 11 Moon landing with the Parkes telescope - “The Dish” - broadcasting t...

May 31, 2019

13th June 1983   

Pioneer 10 becomes the first human-made object to pass outside Pluto's orbit and leave the solar system. It was the farthest human-made object in existence until Voyager 1 exceeded its range in February 1998. It continues its journey through interstellar space heading in the general direction of A...

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June 30, 2020

April 30, 2020

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