Category Archives: Space

USAF’s X37B Spy Sat – a “mini-Shuttle”

One most interesting aerospace project that has managed to keep a relatively low profile is the American X37B reconnaissance spacecraft, as reported by the BBC http://www.bbc.co.uk/news/science-environment-16423881 and described on Wikipedia http://en.wikipedia.org/wiki/X-37B. First going in to service (apparently) in April 2010, … Continue reading

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Widespread Vitamin D Deficiency in the UK?

Vitamin D is essential in a number of biochemical roles in the human body, perhaps the best known is that of being involved in the process in which calcium in taken up for growth and maintenance of bone structure. Vit.D … Continue reading

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How dangerous are the “Green Propellants”?

Some time ago we attempted to address the question “How Dangerous are the Hydrazine Fuels” and so it is interesting to consider the same question for the “Green Propellants”. I don’t know if there is any generally accepted definition of … Continue reading

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Has ‘Curiosity’ Done for Manned Spacefight?

Many of us are astonished, but pleasantly so, that the Mars Lander ‘Curiosity’ made it to the surface of Mars with its quite novel landing system, making what appears to have been a perfect and near pin-point landing. Those of … Continue reading

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Image of the Year

There will, no doubt, be many photographs of events taken during the Olympic games which may be considered as ‘Image of the Year’. Personally,  I won’t be voting for any of those, but this picture, obtained from the Hubble Space … Continue reading

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How Dangerous are the Hydrazine Fuels?

Just how dangerous are the Hydrazine Fuels? The hydrazine fuels (anhydrous hydrazine and mono-methylhydrazine MMH) are currently going through close scrutiny in Europe because of the new ‘REACH’ legislation. Consequently, the question of their toxicity is a hot subject. Having … Continue reading

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