JWST

Two March discoveries reveal a 10-billion-year-old lava world with a thick atmosphere and a sulfur-dominated planet unlike anything in existing classification systems.

A 15-hour JWST observation has produced the first three-dimensional map of Uranus's ionosphere, confirming decades-long atmospheric cooling and exposing how the planet's tilted, offset magnetic field sculpts complex auroral structures unlike any seen elsewhere in the solar system.