Biosignature
Videos
A biosignature is a phenomenon that can be explained by biological processes where all possible abiotic causes of this phenomenon have been eliminated. This term is mainly used in the field of astrobi
Electron micrograph of microfossils from a sediment core obtained by the Deep Sea Drilling Program
A Life Detection Ladder summarizing measurable traits associated with living systems, ordered by how strongly they may indicate extant life. The framework, inspired by lessons from Viking and later missions, links biological features with the types of measurements that could support a confident life-detection claim.
Discovery of long-chain hydrocarbons by SAM at Gale Crater in 2025. These fatty acids are the key components of cell membranes.
An image of the plumes of water and ice coming from the surface of Enceladus. Future missions will investigate these geysers to determine the composition and look for signs of life.
THEO
Videos
THEO is a feasibility study for a New Frontiers class orbiter mission to Enceladus that would directly sample its south pole water plumes in order to study its internal habitability and to search for
Artist's impression of possible hydrothermal activity on Enceladus.