The June solstice will fall on June 20 or June 21 this year, depending on where you are in the world. It is the longest day in the northern hemisphere and the day when the Sun is at its highest in the midday sky (see note). The origin of the word solstice is from the Latin words sol,… Continue reading June 20- The Solstice
Author: Steve Hurley
Spaceport UK?
I was very pleased to hear a couple of weeks ago that the UK government plans to introduce a piece of legislation called the Modern Transport Bill. This may not sound very exciting, but behind the uninspiring name is the intention to ultimately establish the UK's first commercial spaceports, from which space tourists as well as scientists… Continue reading Spaceport UK?
Giving Venus an artificial magnetic field
As discussed in a previous post, in the far future humanity may decide to terraform Venus so that the planet has a similar temperature and atmosphere to that which currently exists on the Earth. However, the lack of a global magnetic field would cause significant obstacles to humans settling on Venus. Without this protective shield inhabitants would be exposed to the… Continue reading Giving Venus an artificial magnetic field
The Earth’s magnetic field
Revised and Updated 1 February 2026 The Earth is unique among the inner planets in our Solar System (Mercury, Venus, Earth and Mars) in that it has a strong magnetic field. It is this invisible field which causes the needle of a compass to point North that has been used by navigators for centuries and is used… Continue reading The Earth’s magnetic field
ExoMars TGO: Tracking Methane in the Martian Atmosphere
The ExoMars Trace Gas Orbiter, launched in 2016, aimed to study methane on Mars, a gas that might indicate geological or biological activity. Initially suspected to exist in trace amounts, recent findings revealed no detectable methane, leading to questions about previous measurements and highlighting mysteries around Mars' atmospheric composition.


