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An RNA-Peptide World
“I don’t want to replace the RNA world theory,” Carell said. But “I think we need an extension” to make it more plausible. He thinks that rather than evolving their complexity separately, RNA and peptides did it together as a single molecule, complementing each other’s functions.
Mar 4, 2023
Why astronomers rejected the technosignature from Proxima Centauri
Posted by Dan Breeden in category: alien life
Located in Austrailia, the CSIRO Parkes Radio Telescope picked up the strange signal stemming from Proxima Centauri.
CSIRO/A. Cherney.
On 29 April 2019, the Parkes Radio Telescope in New South Wales, Australia, picked up an unusual signal while searching for signs of intelligent life elsewhere in the universe. The telescope was observing Proxima Centauri, the nearest star to the sun and host to a number of exoplanets that are potentially habitable.
Mar 4, 2023
Determining the tempo of evolution across species
Posted by Dan Breeden in categories: biotech/medical, evolution, genetics
Scientists from Denmark and China have estimated germline mutation rates across vertebrates by sequencing and comparing genetic samples from 151 mother, father, and offspring trios from 68 species of mammals, fishes, birds and reptiles. A bioinformatics pipeline was designed to read, analyze and compare the genome mutations that occur yearly and between generations in each species.
The research was published March 1, 2023, in the journal Nature.
Knowing the germline mutation rate could allow a greater understanding of evolutionary drivers and be used to estimate when a species first arose. Despite the variety of evolutionary paths seen in 68 different species, researchers found the germline mutation rate to be relatively conserved.
Mar 4, 2023
Cosmic rays reveal ‘hidden’ 30-foot-long corridor in Egypt’s Great Pyramid
Posted by Dan Breeden in category: futurism
For years, scientists have known there was something hidden above the entrance to the Great Pyramid. Now, they’ve finally revealed it.
Mar 4, 2023
The Gravettian Culture that Survived an Ice Age
Posted by Dan Breeden in category: climatology
New research sheds lights on the resilient and technologically advanced Gravettian culture, which dominated Ice Age Europe and left a 20,000-year mark.
Mar 4, 2023
Live AMA on the 2022 Year in Review update, AGI progress, and all things SingularityNET for 2023
Posted by Dan Breeden in categories: robotics/AI, singularity
Matt on progress toward AGI in 2022 via OPenCog Hyperon.
Mar 4, 2023
NASA Satellites Make Groundbreaking Discovery of Water on the Moon
Posted by Daniel Sunday in category: satellites
A statically generated blog example using Next.js and WordPress.
Mar 4, 2023
AI leader says field’s new territory is promising but risky
Posted by Ken Otwell in category: robotics/AI
Basic ideas for the laymen. Accurate, but not much new.
It demands we be both “brave” and responsible, DeepMind’s Demis Hassabis says.