Lisa Dang

Planet TOI-561 b orbits its star in less than a day and surprises with its lightness. Infrared observations revealed: the dayside isn't hot enough for bare rock. This means a thick gas coat holds in the heat, rewriting the rules for worlds around bright stars.

Astronomers using the James Webb Space Telescope observed the exoplanet WASP-121b—a blazing gas giant circling perilously close to its star. It turns out the planet is losing its atmosphere: helium streams into space in two comet-like tails. One tail outruns the planet and plunges into the star, whi

Ultra-precise photometry of four secondary eclipses of the planet in the red dwarf system GJ 3929 yielded a depth of 118±22 ppm, corresponding to a dayside temperature of about 640 K. Modeling showed that a dense carbon dioxide envelope like Venus's cannot be held, though traces of gases might remai