The Strange Case of the Glowing Brown Dwarf and Its Moon

You will learn about one of the most amazing discoveries made by NASA’s James Webb Space Telescope: a brown dwarf that glows like a neon sign.

A brown dwarf is an object more massive than Jupiter but smaller than a star. It does not have enough mass to start nuclear fusion in its core, so it does not shine like a star. But this brown dwarf, called W1935, showed a surprising infrared emission from methane that resembles an aurora, a phenomenon usually seen on Earth and other planets with magnetic fields and atmospheres.

But W1935 has no star to orbit, so what is the source of its glow? This is a mystery that puzzles the astronomers who discovered it. Watch this video to find out what are the possible explanations for this emission and what it means for our understanding of the universe.

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