Is there such a thing as a biosignature?
The concept of a biosignature is widely used in astrobiology to suggest a link between some
observation and a biological cause, given some context. The term itself has been defined …
observation and a biological cause, given some context. The term itself has been defined …
Toward network‐based planetary biosignatures: Atmospheric chemistry as unipartite, unweighted, undirected networks
ML Wong, A Prabhu, J Williams… - Journal of …, 2023 - Wiley Online Library
Previous examinations of astrophysical chemical reaction networks found that Earth's
atmospheric network was distinct in its hierarchical organization and scale‐free nature. If …
atmospheric network was distinct in its hierarchical organization and scale‐free nature. If …
An Overview of Exoplanet Biosignatures
EW Schwieterman, M Leung - Reviews in Mineralogy …, 2024 - pubs.geoscienceworld.org
In the last three decades, knowledge of planetary systems other than our own has increased
rapidly with the discovery of over 5,000 exoplanets (Christiansen 2022). These worlds vary …
rapidly with the discovery of over 5,000 exoplanets (Christiansen 2022). These worlds vary …
Searching for life, mindful of lyfe's possibilities
ML Wong, S Bartlett, S Chen, L Tierney - Life, 2022 - mdpi.com
We are embarking on a new age of astrobiology, one in which numerous interplanetary
missions and telescopes will be designed, built, and launched with the explicit goal of …
missions and telescopes will be designed, built, and launched with the explicit goal of …
Assessment of stoichiometric autocatalysis across element groups
Autocatalysis has been proposed to play critical roles during abiogenesis. These proposals
are at odds with a limited number of known examples of abiotic (and, in particular, inorganic) …
are at odds with a limited number of known examples of abiotic (and, in particular, inorganic) …
Future of the search for life: Workshop report
The 2-week, virtual Future of the Search for Life science and engineering workshop brought
together more than 100 scientists, engineers, and technologists in March and April 2022 to …
together more than 100 scientists, engineers, and technologists in March and April 2022 to …
Confidence of life detection: The problem of unconceived alternatives
P Vickers, C Cowie, SJ Dick, C Gillen, C Jeancolas… - Astrobiology, 2023 - liebertpub.com
Potential biosignatures that offer the promise of extraterrestrial life (past or present) are to be
expected in the coming years and decades, whether from within our own solar system, from …
expected in the coming years and decades, whether from within our own solar system, from …
Multi-Technique Characterization of 3.45 Ga Microfossils on Earth: A Key Approach to Detect Possible Traces of Life in Returned Samples from Mars
The NASA Mars 2020 Perseverance rover is actively exploring Jezero crater to conduct
analyses on igneous and sedimentary rock targets from outcrops located on the crater floor …
analyses on igneous and sedimentary rock targets from outcrops located on the crater floor …
Chapter 8: Searching for Life Beyond Earth
The search for life beyond Earth necessitates a rigorous and comprehensive examination of
biosignatures, the types of observable imprints that life produces. These imprints and our …
biosignatures, the types of observable imprints that life produces. These imprints and our …
False positives and the challenge of testing the alien hypothesis
The origin of life and the detection of alien life have historically been treated as separate
scientific research problems. However, they are not strictly independent. Here, we discuss …
scientific research problems. However, they are not strictly independent. Here, we discuss …