SMRTR Science & EngineeringJul 12, 2026Ars Technica

A Jupiter-size planet that escaped its star's death

SMRTR summary

WD 1856 b is a Jupiter-size planet that somehow survived its star's death and now orbits a white dwarf just 75 light-years away. Webb telescope data revealed unexpected methane, haze, and heat, suggesting gravitational interactions with companion stars pulled it dangerously close to the stellar remnant billions of years later.

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