Astronomers shocked by mysterious gas found in deep space

Astronomers have discovered phosphine gas in the atmosphere of an ancient brown dwarf, Wolf 1130C, using the James Webb Space Telescope. The finding is puzzling because phosphine, a potential biosignature, has been missing from other similar objects. The detection may reveal how phosphorus behaves in low-metal environments or how stellar remnants like white dwarfs enrich their surroundings with this crucial element.