$30 webcams track stealth planes using asteroid detection method

Well, you can walk up to an F-35 and see it, it's not like they're invisible. The question always was how close the enemies would have to be to see it, and if that distance is >100mi, you're dead before you see it and the discussion is moot. If your camera couldn't see over the horizon(NOTE: Earth is round), then the point is moot as well.

The entire hyperbole feels like someone saw couple F-35 on a satellite photo and grew misguided confidence. I don't work for any military or intelligence fields, but I'm sure they are going to take out that capability from enemies quickly, and then they'll be back to ground based sensors, and then stealth matters again. It's crazy not everyone just sees that.

If the tracking can be done in realtime, AAA doesn’t require guidance. Merely fill the appropriate volume of space and wait for collisions.

A very nice project. However, tracking is one thing, targeting and shooting down another.