It is little wonder that the National Aeronautics and Space Administration has photos of spacecraft, crashed and otherwise, which they have not yet chosen to release to the public. They do tend to release these images on occasion, and sometimes with a splashy headline like the one posted by Fox News -- "NASA posts photo of crashed 'flying saucer from outer space.'"
"A "flying saucer" crash-landed in a Utah desert 14 years ago and now NASA is sharing pictures for the first time... The "flying saucer" isn't an alien spaceship though — it is the remnants of the robot spaceship Genesis that was designed to study the Sun and launched in 2001," the Fox News copy reads.
It makes sense that many of these objects look like what we imagine alien ships might look like. Some shapes, such as saucers, are the best form factors for parts of space craft -- past or present. And of course, the objects are alien to the common eye, because we haven't seen them before.
The general public is not always made aware of the ships being worked on by government contractors for secret missions -- or even more common aerospace projects. So when one of them ends up in a corn field, our imaginations take over. This is the case for the most recent crash landing, which was attributed to be part of the Genesis space mission launched in 2001.