JimOberg, on 26 October 2012 - 02:48 PM, said:
How did the astronauts measure the distance as 20-30 miles?
Can any case be 'good' if nobody but believers gets to comment on it?
I saw how this was done. Sorry I don't have the source link anymore.
If I recall, the astronauts noted the object was travelling the same speed as they were. As they orbited they measured the time it passed into Earth's shadow (or out of, can't recall which) then noted how long before they passed into (or out of) the shadow. Knowing their orbital speed, they then calculated the approximate distance to the object. Using that distance and the angular distance from one end of the object to the other, they could calculate the length of the UFO.
It was something like that. The method and math used were very understandable.
At the heart of science is an essential balance between two seemingly contradictory attitudes--an openness to new ideas, no matter how bizarre or counterintuitive they may be, and the most ruthless skeptical scrutiny of all ideas, old and new.
This is how deep truths are winnowed from deep nonsense. -- Carl Sagan