Interstellar comet 3I/ATLAS makes its closest approach to Earth on Dec. 19. Here's how you can track its progress both during the pass and as it races out of the solar system on its way to interstellar space, never to be seen again.

With 3I/ATLAS slated to make its Earth tour in two days, amateur photographers and astronomers alike are scrambling to catch sight of the interstellar comet. Our intergalactic visitor will officially make its closest approach on December 19.

Harvard physicist Avi Loeb raises concerns as interstellar object 3I/ATLAS makes its closest pass to Earth later this month.