Galactic Puzzle Hunt 2019

Galactic Puzzle Hunt 2019, titled The Galactic Artifact, was the third iteration of the Galactic Puzzle Hunt, run by ✈✈✈ Galactic Trendsetters ✈✈✈.

Plot
A curious artifact is discovered in Antarctica. When assembled, it allows the solvers to contact alien civilizations, culminating in a Galactic Conference between the aliens.