The Galaxy Survey Stranger That Turned Out to Be a Planet-Mass Drifter
A red speck in JWST’s deep galaxy survey proved to be a nearby, planet-mass Y dwarf—with an atmosphere current models struggle to explain.
planetary atmospheres
A White Dwarf’s Strange Gas Disk May Be Fed by a Dying Planet
A young white dwarf’s strange gas disk may be fed by a Neptune-like planet losing its atmosphere—but key clues remain unresolved.