Smithsonian Magazine ·Behind the news
A Rare Comet Made History as the Third Known Interstellar Object to Fly Through Our Solar System. Studies Are Now Revealing the Mysterious Conditions in Which It Formed
Published 2026-06-29 16:02:32+00:00
How do you read the history of an ancient star system from a passing chunk of ice?
0:00 / 10:01 · Narrator Rasalgethi
Context
A chunk of rock and ice from another star is currently flying past Jupiter, heading back into the dark. Published on 29 June 2026, this Smithsonian Magazine story catches the comet just before it disappears forever. The dust trailing behind it offers a rare physical sample of a completely alien planetary system. The frozen water and minerals inside this rock point to an ancient, quiet origin, entirely missing the violent turbulence that forged Earth's solar system. It raises a simple question about how unusual this specific corner of the galaxy might actually be.