Io and Europa sit at fixed screen offsets around Jupiter and Venus at
its place. Crowded label families fold into the parent's label with a
"+N" marker (the Jupiter system below zoom 2.5); tapping it or zooming
in shows all three. The haze strip is finer and repeats so it doesn't
streak when zoomed in. The discovery browser test waits for a Mars
first contact now that Venus competes for the slot.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
