14+ hour, 13+ min ago  (260+ words) Astrobiology Web [PNAS] Biosignature detection remains a key challenge in astrobiology, yet robust mineral biosignatures remain limited. Raman spectroscopy is increasingly applied in planetary exploration, but its high-dimensional spectral information has not yet been fully exploited for biosignature discrimination using…...

3+ week, 4+ day ago  (201+ words) The National Academies’ decadal survey, Pathways to Discovery in Astronomy and Astrophysics for the 2020s (Astro2020), identifies the most compelling science challenges and frontiers in astronomy and astrophysics and presents a comprehensive research strategy to advance the field over the next decade…...

1+ mon, 1+ week ago  (588+ words) Measuring Alien Genomics with a tricorder – Grok/Astrobiology.com — Source: Tricorder Tech: Machine Learning To Scan For Signs Of Extraterrestrial Life This is possible thanks to Basecamp Research’s growing network of global biodiversity partners. Its ultimate goal is to provide…...

1+ mon, 2+ week ago  (176+ words) astrobiology.com Some Thoughts on the Future of Technosignature Searches: Constraining the Fermi Paradox This paper examines how future technosignature searches may constrain competing resolutions of the Fermi Paradox, with particular attention to the possibility that technologically capable entities (TCEs)…...

1+ mon, 3+ week ago  (226+ words) astrobiology.com Synthetic Biology As An Empirical Tool For Evolutionary Theory Evolutionary biology has traditionally inferred process from patterns in extant organisms and the fossil record, leaving many foundational questions constrained by their historical nature. Over the past two decades,…...

1+ mon, 3+ week ago  (180+ words) The Great Filter hypothesis proposes that the emergence of technological societies capable of interstellar travel depends on a small number of exceptionally hard and highly improbable steps. Traditional versions of this hypothesis enumerate such “hard steps” along the trajectory from…...

2+ mon, 14+ hour ago  (244+ words) Biologist, Explorers Club Fellow, ex-NASA Space Biologist and Payload integrator, Editor of NASAWatch.com and Astrobiology.com, Lapsed climber, Explorer, Synaesthete, Former Challenger Center board member 🖖🏻 Artificial Intelligence Aided Design Of Peptides With Custom Secondary Structure Motifs And Reduced Amino…...

2+ mon, 5+ day ago  (147+ words) astrobiology.com Here, we derive sufficient conditions for subgraphs supporting irreducible autocatalytic systems in the bipartite König representation of the CRN. On this basis, we develop an efficient algorithm to enumerate autocatalytic subnetworks and, as a special case, autocatalytic cores,…...

2+ mon, 2+ week ago  (598+ words) The system, called CoCoGraph, works in a similar way to generative artificial intelligence tools for text or images, such as ChatGPT or Dall-E. “These models create new content that looks very much like the real thing. Our algorithm does the…...

3+ mon, 2+ week ago  (259+ words) Imagine you have 20 or so different block types, which you can connect in different orders and abundances into chains of tens, hundreds or even thousands of blocks in length. Mapping all possible resulting chains creates a sequence space. Of these…...