A friend of mine recently asked me whether it was possible to have a lunar-stationary orbit. This would be the equivalent of a geostationary orbit, but around the Moon rather than the Earth. To an observer on the Moon, a lunar-stationary satellite would appear fixed in the sky and if a dish were pointed… Continue reading Lunar Stationary Orbits: Why They are Impossible
This post is about space tourism, which means ordinary people travelling into space for leisure purposes and paying to do so. This is a subject which has always been of great interest to me and although the market is very small at the moment I think it will grow over the coming decades. With the… Continue reading Space Tourism
For centuries novelists have written about humans living and working on the moon. One of my favourite science fiction novels is "A Fall of Moondust" by the British author Arthur C Clarke (1917-2008). It was written in 1961, before man had ventured into space and when we knew very little about the Moon's surface, but set in the… Continue reading Living on the Moon.
Explaining Science 