By William Alba
William Alba is Associate Teaching Professor in Chemistry and Assistant Dean for Diversity in the Mellon College of Science at Carnegie Mellon University, where he directs two academic programs. He serves on the Advisory Council of METI International, the Advisory Board of Arch Mission Foundation, and the Board of Directors of the Society for Social and Conceptual Issues in Astrobiology.
Earlier this year, astronomers with the Breakthrough Listen project detected a narrow-band radio signal (BLC1) from the direction of Proxima Centauri. Scientists continue to verify and analyze data to determine whether BLC1 might be an intentional message from an extraterrestrial civilization.