JWST has turned its IR vision on Neptune. The eight planet’s dark and ghostly appearance is caused by atmospheric methane absorbing infrared light. High clouds above most of Neptune’s absorbing methane easily stand out in this image. Because its surface is coated with frozen nitrogen, Neptune’s largest moon Triton (in the upper left) is brighter in than Neptune in reflected IR sunlight. It’s surrounded by JWST’s characteristic diffraction spikes.

Image Credit: NASA / ESA / CSA / STScI