Selenium

Selenium maintains a limited but notable presence in astronomical contexts, albeit less abundant compared to more prevalent cosmic elements. Derived from nucleosynthesis processes within stars, selenium exists in relatively minor quantities within cosmic environments, presenting challenges in its detection and comprehensive analysis. Its spectral lines, primarily observable in the infrared and far-infrared spectra, pose difficulties in precise identification due to its scarcity and weaker spectral characteristics. Detected in trace amounts within the interstellar medium, selenium contributes marginally to the observed chemical composition in interstellar clouds.