Recently, NASA wrote a piece describing the discovery of the molecule methane in the atmosphere of WASP-80b, as announced by Taylor Bell et al. in Nature.

An artist’s rendering of the warm exoplanet WASP-80 b whose color may appear bluish to human eyes due to the lack of high-altitude clouds and the presence of atmospheric methane identified by NASA’s James Webb Space Telescope. Image credit: NASA.

Taylor Bell explains: “NASA has a history of sending spacecraft to the gas giants in our solar system to measure the amount of methane and other molecules in their atmospheres. Now, by having a measurement of the same gas in an exoplanet, we can start to perform an “apples-to-apples” comparison and see if the expectations from the solar system match what we see outside of it.”

The measured transit spectrum (top) and eclipse spectrum (bottom) of WASP-80 b from NIRCam’s slitless spectroscopy mode on NASA’s James Webb Space Telescope. In both spectra, there is clear evidence for absorption from water and methane whose contributions are indicated with colored contours. Image Credit: BAERI/NASA/Taylor Bell.

The NASA piece led to widespread reporting of the finding on numerous websites.