Exoplanet biosignatures: a review of remotely detectable signs of life
In the coming years and decades, advanced space-and ground-based observatories will
allow an unprecedented opportunity to probe the atmospheres and surfaces of potentially …
allow an unprecedented opportunity to probe the atmospheres and surfaces of potentially …
Signatures of early microbial life from the Archean (4 to 2.5 Ga) eon
K Lepot - Earth-Science Reviews, 2020 - Elsevier
Abstract The Archean era (4 to 2.5 billion years ago, Ga) yielded rocks that include the
oldest conclusive traces of life as well as many controversial occurrences. Carbonaceous …
oldest conclusive traces of life as well as many controversial occurrences. Carbonaceous …
A molecular timescale for eukaryote evolution with implications for the origin of red algal-derived plastids
In modern oceans, eukaryotic phytoplankton is dominated by lineages with red algal-derived
plastids such as diatoms, dinoflagellates, and coccolithophores. Despite the ecological …
plastids such as diatoms, dinoflagellates, and coccolithophores. Despite the ecological …
[KSIĄŻKA][B] Atmospheric evolution on inhabited and lifeless worlds
DC Catling, JF Kasting - 2017 - books.google.com
As the search for Earth-like exoplanets gathers pace, in order to understand them, we need
comprehensive theories for how planetary atmospheres form and evolve. Written by two well …
comprehensive theories for how planetary atmospheres form and evolve. Written by two well …
The ladder of life detection
We describe the history and features of the Ladder of Life Detection, a tool intended to guide
the design of investigations to detect microbial life within the practical constraints of robotic …
the design of investigations to detect microbial life within the practical constraints of robotic …
SIMS analyses of the oldest known assemblage of microfossils document their taxon-correlated carbon isotope compositions
Analyses by secondary ion mass spectroscopy (SIMS) of 11 specimens of five taxa of
prokaryotic filamentous kerogenous cellular microfossils permineralized in a petrographic …
prokaryotic filamentous kerogenous cellular microfossils permineralized in a petrographic …
[HTML][HTML] The Paleoproterozoic fossil record: implications for the evolution of the biosphere during Earth's middle-age
EJ Javaux, K Lepot - Earth-Science Reviews, 2018 - Elsevier
Abstract The Paleoproterozoic (2.5–1.6 Ga) Era is a decisive time in Earth and life history.
The paleobiological record (microfossils, stromatolites, biomarkers and isotopes) illustrates …
The paleobiological record (microfossils, stromatolites, biomarkers and isotopes) illustrates …
[HTML][HTML] Resolving MISS conceptions and misconceptions: a geological approach to sedimentary surface textures generated by microbial and abiotic processes
The rock record contains a rich variety of sedimentary surface textures on siliciclastic
sandstone, siltstone and mudstone bedding planes. In recent years, an increasing number …
sandstone, siltstone and mudstone bedding planes. In recent years, an increasing number …
Constraining the time interval for the origin of life on Earth
Estimates of the time at which life arose on Earth make use of two types of evidence. First,
astrophysical and geophysical studies provide a timescale for the formation of Earth and the …
astrophysical and geophysical studies provide a timescale for the formation of Earth and the …
Cyanobacterial evolution during the Precambrian
Life on Earth has existed for at least 3.5 billion years. Yet, relatively little is known of its
evolution during the first two billion years, due to the scarceness and generally poor …
evolution during the first two billion years, due to the scarceness and generally poor …