The core of the protocluster SPT2349-56 as observed by the James B. Space Telescope. The galaxy C26, marked in the frame, has lost more than half of its cold gas reservoir to the trailing tail. Blue: NIRCam at 2 microns; green: NIRCam at 4.44 microns; red: MIRI at 10 microns. Credit: Zhou et al., arXiv:2606.18229