The new observations from the Near-Infrared Spectrograph (NIRSpec) aboard the NASA/ESA/CSA James Webb Space Telescope show that the main-belt comet 238P/Read has a coma of water vapor, but lacks a significant carbon dioxide coma. This artist’s concept of shows the main-belt comet 238P/Read sublimating — its water ice vaporizing as its orbit approaches the Sun. Image credit: NASA / ESA. Comet 238P/Read was discovered on 24 October 2005 by the...