I think it’s quite funny that without gravity in space, astronauts can’t cry properly, because there’s nothing to make their tears run down their face. The tears would just float out of their eyes horizontally like in some cartoons! Is that cruel?
That when you are ready to go observing, it starts to get cloudy, and then when you get fed up of waiting and decide to go and make a cup of tea, the clouds disappear?
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Adam commented on :
PS. This book is full of cool stories about space
http://www.amazon.co.uk/Packing-Mars-Curious-Science-Life/dp/0393068471