An international collaboration led by Jiang et al. has reported the synthesis and characterization of a cerium-carbide cluster exhibiting a lanthanide–carbon triple bond stabilized inside a C80 fullerene cage, a landmark in organometallic chemistry. The complex, Ce≡CSc2@C80, features an exceptionally short Ce–C bond length of 1.969 Å, elucidated through X-ray crystallography, spectroscopy, and quantum chemical calculations. The fullerene cage provides unique electronic stabilization, enabling the isolation of this rare bonding motif, which challenges conventional limitations of lanthanide-carbon multiple bond formation and may unlock new pathways in coordination chemistry and materials science.