Chemical Composition Habitability Super-Puff Planets Gas Composition Rocky Planets Water Vapor Atmospheric Composition Hydrogen-rich Atmosphere Hydrogen-Rich Atmospheres Gas Giants Hydrogen Atmospheres Internal Dynamics Coronal Mass Ejections Atmospheric Studies Chemical Signatures Secondary Atmospheres Magma Oceans Heat Regulation Extreme Environments Helium Molecular Chemistry Exoplanets Atmospheric Dynamics Carbon Compounds Earth's Atmosphere Comparative Planetology Ionosphere Exospheres Free-Floating Planets Geological Activity
Invisible pulsar light let astronomers isolate the planet’s infrared signal, exposing an atmosphere that current formation models cannot explain.