Saturday, Jan. 31, 2026: Follow NASA's last major test of SLS before the launch of Artemis 2 and a crew of astronauts around the moon.
The chemical is known as thiepine, or 2,5-cyclohexadiene-1-thione (C₆H₆S), a ring-shaped sulfur-bearing hydrocarbon produced in biochemical reactions. When examining the molecular cloud G+0.693–0.027, a star-forming region about 27,000 light-years from Earth near the center of the Milky Way, astronomers from the Max Planck Institute for Extraterrestrial Physics (MPE) and the CSIC-INTA Centro de Astrobiología (CAB) detected this complex molecule in space for the first time. This detection represents the largest sulfur-bearing molecule ever detected beyond Earth, with significant implications for the study of the cosmic origins of life.

