5.11 microns. That's exactly where a team found an unidentified absorption in spectra from the James Webb telescope - on the surfaces of both Titan and Pluto. Likely from a molecule never seen anywhere else in the Solar System.
- JWST detected an unexplained signature at 5.11 microns on the surfaces of Titan and Pluto.
- Likely an unknown molecule; candidates - allene, benzene, ketene, or (less likely) acetylene.
- Caveat: from a June arXiv preprint, not yet peer-reviewed - a strong lead, not a final conclusion.
A team working with spectra from the James Webb Space Telescope spotted the same strange signature on two very different bodies - the moon Titan and the dwarf planet Pluto. The overlap is interesting precisely because the two worlds don't have much in common.
What's interesting is something else - the honest 'we don't know.' In an age when every model rushes to hand you an answer, it's a rare pleasure to see a team say 'here's a signature, here are the suspects, but we're not sure.' Science that admits where its edge is weighs more than science that hides it.
The instrument has become so precise that it sees things we don't even have a name for yet. That's exactly the leading edge of science, not its failure. The next step is patient work on the lab bench, until it's clear which molecule leaves exactly this signature.