Science Questions

Sun, 28th Nov 2004

Part of the show Safe Sex, & Cervical Cancer Vaccines

Question

Robert asked:

I was looking at the moon and saw what looked like a huge great rock float past it. What was it ?

Answer

To block out the moon it would have to have been a huge chunk of rock a long way off, or a smaller piece much closer to the Earth. But in either case we would have known about it because of the obvious risk to satellites and to the Earth itself. Also, it probably would have gone on to burn up in the atmosphere, producing a bright light which we would have seen. But it seems very unlikely that what you saw was actually in space. As it appeared so large, it could well have been an aeroplane, or possibly a helium weather balloon...or perhaps a stealth aeroplane or even a UFO !?

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