===== On the Detection of Cyanothioketene in the Interstellar Medium ===== C. Cabezas, M. Agúndez, Y. Endo, B. Tercero, Y.-P. Lee, N. Marcelino, P. de Vicente, and J. Cernicharo\\ published the\\ **[[https://doi.org/10.1051/0004-6361/202450323|Laboratory and astronomical discovery of cyanothioketene, NCCHCS, in the cold starless core TMC-1]]**\\ //Astron. Astrophys.// **686**, (2024), Art. No. L3.\\ The molecule, which is also known as cyanoethenthione, was identified in the course of a line survey carried out with the Yebes 40 m dishe. 23 //a//-type transitions with 8 ≤ //J// ≤ 14 and //Ka// ≤ 2 were detected between 31 and 50 GHz with good to reasnable signal-to-noise ratios. The thioketene to cyanothioketene ratio is as low as ~6.5, while the ratio of the more abundant thioformaldehyde to cyanothioformaldehyde is ~28. Cyanoketene was not detected, and the ketene to cyanoketene is > ~430. Judging by the formaldehyde to cyanoformaldehyde ratio of ~1400, the observation of cyanoketene may require only a modest increase in sensitivity.\\ \\ ---- Contributor(s): H. S. P. Müller; 05, 2024 ----