Deciphering Biosignatures in Planetary Contexts

Deciphering Biosignatures in Planetary Contexts | Astrobiology

In the search for extraterrestrial life in the Universe, it is critical to determine what constitutes a biosignature across multiple scales.

Deciphering Biosignatures in Planetary Contexts - PubMed Central

The most familiar and convincing mineral biosignatures are morphological in character. Biomineralized shells, teeth, and bones composed of carbonate, silica, or ...

Deciphering Biosignatures in Planetary Contexts - PubMed

Microbial life permeates Earth's critical zone and has likely inhabited nearly all our planet's surface and near subsurface since before the beginning of ...

Deciphering Biosignatures in Planetary Contexts - Semantic Scholar

Five key challenges that warrant future exploration by the astrobiology community include identifying the precise context across multiple spatial and ...

Deciphering Biosignatures in Planetary Contexts

In the search for extraterrestrial life in the Universe, it is critical to determine what constitutes a biosignature across multiple scales, and ...

7.1. What is a biosignature? - NASA Astrobiology

For instance, what kinds of biosignatures might we look for on exoplanets? Using our telescopes on the Earth and in orbit of our planet, we can now look at the ...

Exoplanet Biosignatures: A Review of Remotely Detectable Signs of ...

A biosignature is nominally defined as an “object, substance, and/or pattern whose origin specifically requires a biological agent” (Des Marais and Walter, 1999 ...

Deciphering Biosignatures in Planetary Contexts - Amanote Research

Deciphering Biosignatures in Planetary Contexts by Marjorie A. Chan, Nancy W. Hinman, Sally L. Potter-McIntyre, Keith E. Schubert, Richard J.

The case and context for atmospheric methane as an exoplanet ...

We explore the necessary planetary context for methane to be a persuasive biosignature and assess whether, and in what planetary environments, ...

4 Biosignature Identification and Interpretation | An Astrobiology ...

Finding: The catalog of potential biosignatures would benefit from a systematic reevaluation and increased understanding of the nature and detectability of ...

Biosignatures - (Planetary Science) - Vocab, Definition, Explanations

Understanding biosignatures not only helps in the search for extraterrestrial life but also aids scientists in studying Earth's ancient environments and past ...

Determining the “Biosignature Threshold” for Life Detection on Biotic ...

(2019). Deciphering biosignatures in planetary contexts. Astrobiology. 19:1075–1102. Chandru K, Gutternberg N, Giri C, et al. (2018) Simple pre- biotic ...

Understanding Oxygen as a Biosignature in the Context of Its ...

It is the volatile byproduct of oxygenic photosynthesis— the metabolism driven by sunlight, which is the dominant source of energy on our planet's surface—and ...

Understanding Oxygen as a Biosignature in the Context of Its ... - arXiv

These studies suggest that planetary characteristics that may enhance false negatives should be considered when selecting targets for ...

Understanding Oxygen as a Biosignature in the Context of Its ...

We describe future photometric, spectroscopic and time-dependent observations of O2 and the planetary environment that could increase our confidence that any ...

[PDF] Exoplanet Biosignatures: Future Directions | Semantic Scholar

Deciphering Biosignatures in Planetary Contexts · M. ChanN. Hinman +18 authors. H. Cleaves. Environmental Science, Geology. Astrobiology. 2019. TLDR. Five key ...

Understanding Oxygen as a Biosignature in the Context of Its ...

These studies suggest that planetary characteristics that may enhance false negatives should be considered when selecting targets for biosignature searches. We ...

Biosignatures and life detection methods range from microscopic ...

Biosignatures and life detection methods range from microscopic (left) to planetary scales (right). A nested astrobiological approach will provide context ...

Biosignature - (Astrobiology) - Vocab, Definition, Explanations

Different environments produce distinct biosignatures, making it essential to understand planetary conditions when searching for life. Remote sensing technology ...

A robust, agnostic molecular biosignature based on machine learning

Astrobiology 18, 779–824 (2018). 11. M. A. Chan et al., Deciphering biosignatures in planetary contexts. Astrobiology19, 1075–1101 (2019). 12. S ...