Mars as a Living Laboratory: Science‑First Missions to Seek Life

A NASA-backed Mars plan centers on survival and life-support first each sol, then science—drilling for biosignatures, tracing habitability, and testing in-situ resource use—within architectures like 30-Cargo-300 and 30-30-30 that include sample return; discussions include deep drilling, potential nuclear propulsion (SR‑1 Freedom) and autonomous crews due to long Earth–Mars communications delays, all aimed at answering whether life existed on Mars and how a sustainable outpost could work.