zoser, on 03 October 2012 - 03:33 PM, said:
No detail to suggest it's a bug. The first shot looks very much as if the object was on the sky not in front of the lens.
This is a quintessential example of how the ETH works. You take something 'fuzzy' and unexplainable (note that unexplainable and mysterious are not necessarily synonymous) and present it as some sort of evidence that there are 'mysterious' events occurring around us all the time, all the while attempting to steer the debate towards an otherworldly explanation, for 'what else could it be?'. The leaps of logic and logical fallacies aside, it is intellectually dishonest at the very least.
Alien spacecraft or bug or something else entirely, there is no way of determining what that speck in the photos actually is. All that can be done is speculate on it's nature using logic, reason, critical thought and what few facts are available. Even that methodology can't give you a definitive answer in this case though. That leaves probability as the primary avenue of 'research' and unfortunately alien spacecraft are less probable than anything from Earth just by their very nature.
I will bet money that it isn't a flying elephant though, in case anyone was thinking that it might be.