4 ms·

I don't get what's so "impossible" about it. Even if it weren't built, it sounds completely plausible.

• sp332 13y ago
  A single device that observes and catalogs a billion stars sounds like science fiction. That would be a feat even in a software simulation. Doing it in orbit is crazy.
  • JshWright 13y ago
    The 'single device' will just be doing the observing. The cataloging will be done by many more devices on the ground.
  • rorrr2 13y ago
    Without have any knowledge of how that device works, detecting stars from images, their speed, and the distances are all solved problems in astronomy. Recording a billion coordinates and some metadata doesn't sound like science fiction at all.