Apollo 11 lunar landing

20 July 2019 is the fiftieth anniversary of the first manned landing on the Moon. Mission Insignia of Apollo 11- Image from NASA   On 21 May 1961 President John F Kennedy made the following address to the United States Congress: 'I believe that this nation should commit itself to achieving the goal, before this decade… Continue reading Apollo 11 lunar landing

Summer twilight

This explains the stages of twilight , and describes how the Sun's path changes throughout the year in Manchester, England. The phenomenon of "Simmer Dim" in the Shetland Islands is highlighted, characterized by continuous twilight and celebrated with a festival.

The Impact of Stellar Aberration on Astronomy

James Bradleys Explanation of Stellar Aberration

Stellar aberration was discovered by James Bradley in 1727. He observed unexpected star position shifts, confirming the heliocentric theory and enabling light speed measurement. Today, it's explained by Einstein's theory of relativity.

Easter – 21 April 2019

In 2019 , for the majority of people 21 April was Easter Sunday, one of the most important dates in the Christian calendar. Although Easter is a is a festival celebrating the resurrection of Jesus Christ from the dead, it is also widely marked by non-Christians in the UK, particularly as there are two very welcome public holidays on… Continue reading Easter – 21 April 2019

An amazing discovery

For those who missed my post on 1 April 2016 here is a re-blog of the amazing discovery of the first intelligent alien life. ---Original post below News is just reaching us of the most amazing astronomical discovery which I am ever likely to experience in my lifetime, one which I never thought I would see.  As regular… Continue reading An amazing discovery