Briefs · Frontier Science
APOD: 2026 November 4 – The Not-So-Hidden Galaxy, IC 342
IC 342 is not hidden. It is just badly filed.
The so-called Hidden Galaxy is a spiral galaxy about 10 million light-years away, one of the brightest members of the IC 342/Maffei group — practically next door to the Local Group that includes our Milky Way. Today’s picture peers straight through the plane of the Milky Way, through all its gas, dust and stars, to unveil it.
The hiding was our fault. Inaccurate accounting of the crowded, dusty foreground led to misunderstandings about IC 342’s history, including the theory that it had been ejected from the Local Group — evicted, in other words, by bad bookkeeping (sorry, astronomers).
Inside, its own dust intermittently blocks the glow of hydrogen gas, a sign of bright, young stars. Magnetic field maps now suggest magnetism may help explain one of the biggest galactic puzzles: how spiral arms form at all. It is Where’s Wally? on a galactic scale, except Wally is 10 million light-years away and the crowd is made of dust. It was never lost!
Conclusion: IC 342 is not a hidden galaxy. It is a neighbour behind the curtains.
Summary in our own words. The original belongs to its publisher.