Congratulations Blue Origin!

A week is certainly a long time in crewed spaceflight! Following Richard Branson’s trip to “the edge of space” on Sunday 11 July,  Jeff Bezos went one step further on July 20.  He made a short journey to space, in the first crewed flight of his Blue Origin rocket ship, New Shepard.  As the spacecraft… Continue reading Congratulations Blue Origin!

Congratulations Virgin Galactic

Great news from Virgin Galactic on Sunday. Although according to the widely used definition, their spacecraft didn’t quite get into space. Most international authorities define that space begins at an altitude of 100 km (the Karman line), whereas VSS  Unity reached an altitude of 86 km, but a fantastic achievement nevertheless !!. For those who… Continue reading Congratulations Virgin Galactic

The Space Shuttle 10 years on

Ten years ago, on 8 July 2011 Atlantis took off for the final mission of a Space Shuttle, bringing to close a programme which had lasted nearly 40 years  and had cost the equivalent of $220 billion in 2021 dollars. In this post I'll review this fascinating and unique piece of technology. The landing of… Continue reading The Space Shuttle 10 years on

June 21 2021 – the solstice

This year, the June solstice will fall on 21 June.  In the northern hemisphere, it is the day when there is the most daylight and when the Sun is at its highest in the midday sky. The origin of the word solstice is from two Latin words:  sol, which means Sun, and sistere, to stand still. On the… Continue reading June 21 2021 – the solstice

Satellite Navigation

Satellite navigation systems have come to affect countless aspects of our daily lives, from directing our holiday aeroplanes to enabling us to drive round an unfamiliar city without any map other than the one on our mobile phone. Most new cars sold today have an inbuilt Sat Nav and you can buy trackers relatively cheaply… Continue reading Satellite Navigation