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How (the heck) does an astronomical Celescope work? And how did it get its name?

Unless otherwise indicated all of the information in this answer is from Project Celescope: an Astrophysical Reconnaissance Satellite (PDF). Question 1: How were these four telescopes used? Were they ...
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Did this satellite streak past the Hubble Space Telescope so close that it was out of focus? If so, how close was it?

As you note, that particular image has been identified as due an "out of focus" satellite (the other images presumably show more distant satellites in e.g. geosynchronous orbits). The Nature ...
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