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Categories: Biology: Genetics, Space: Exploration

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Published

Finding new physics in debris from colliding neutron stars      (via sciencedaily.com)     Original source 

Neutron star mergers are a treasure trove for new physics signals, with implications for determining the true nature of dark matter, according to physicists.

Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Astronomers spot oldest 'dead' galaxy yet observed      (via sciencedaily.com)     Original source 

A galaxy that suddenly stopped forming new stars more than 13 billion years ago has been observed by astronomers. Using the James Webb Space Telescope, astronomers have spotted a 'dead' galaxy when the universe was just 700 million years old, the oldest such galaxy ever observed.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology
Published

Revealing the evolutionary origin of genomic imprinting      (via sciencedaily.com)     Original source 

Some of our genes can be expressed or silenced depending on whether we inherited them from our mother or our father. The mechanism behind this phenomenon, known as genomic imprinting, is determined by DNA modifications during egg and sperm production.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Synthetic gene helps explain the mysteries of transcription across species      (via sciencedaily.com)     Original source 

'Random DNA' is naturally active in the one-celled fungi yeast, while such DNA is turned off as its natural state in mammalian cells, despite their having a common ancestor a billion years ago and the same basic molecular machinery, a new study finds.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Decoding the language of epigenetic modifications      (via sciencedaily.com)     Original source 

Epigenetic changes play important roles in cancer, metabolic and aging-related diseases, but also during loss of resilience as they cause the genetic material to be incorrectly interpreted in affected cells. A major study now provides important new insights into how complex epigenetic modification signatures regulate the genome. This study will pave the way for new treatments of diseases caused by faulty epigenetic machineries.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Deconstructing the structural elements of a lesser-known microbe      (via sciencedaily.com)     Original source 

Researchers shed light on archaea, intriguing microbes found in extreme environments but also in the human gut microbiome.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Offbeat: General Offbeat: Plants and Animals
Published

Genetic mutation in a quarter of all Labradors hard-wires them for obesity      (via sciencedaily.com)     Original source 

New research finds around a quarter of Labrador retriever dogs face a double-whammy of feeling hungry all the time and burning fewer calories due to a genetic mutation.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Zoology
Published

Lab-grown liver organoid to speed up turtle research, making useful traits easier to harness      (via sciencedaily.com)     Original source 

Researchers developed protocols for growing organoids that mimic a turtle liver, the first organoids developed for a turtle and only the second for any reptile. The discovery will aid deeper study of turtle genetics, including the cause of traits with potential medical applications for humans such as the ability to survive weeks without oxygen.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Space tourism? Cosmic radiation exposure      (via sciencedaily.com)     Original source 

Space weather experts are urging regulators and space tourism innovators to work together to protect their passengers and crews from the risks of space weather radiation exposure.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Groundbreaking survey reveals secrets of planet birth around dozens of stars      (via sciencedaily.com)     Original source 

A team of astronomers has shed new light on the fascinating and complex process of planet formation. The research brings together observations of more than 80 young stars that might have planets forming around them, providing astronomers with a wealth of data and unique insights into how planets arise in different regions of our galaxy.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Ecology: Sea Life Environmental: General Environmental: Water
Published

Microalgae with unusual cell biology      (via sciencedaily.com)     Original source 

A globally distributed single-celled organism that occurs in harmful algal blooms has been found to exhibit an unusual organisation of photosynthesis. Researchers have taken a closer look at the unusual cell biology of the species Prorocentrum cordatum from the group of dinoflagellates. The results of their study could help to better understand the role of the species in the environment and the increased occurrence of algal blooms at higher water temperatures.

Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

JWST captures the end of planet formation      (via sciencedaily.com)     Original source 

The James Webb Space Telescope is helping scientists uncover how planets form by advancing understanding of their birthplaces and the circumstellar disks surrounding young stars. Scientists have imaged winds from an old planet-forming disk (still very young relative to the Sun) which is actively dispersing its gas content. Knowing when the gas disperses is important as it constrains the time left for nascent planets to consume the gas from their surroundings.

Anthropology: General Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals
Published

Modeling the origins of life: New evidence for an 'RNA World'      (via sciencedaily.com)     Original source 

Scientists provide fresh insights on the origins of life, presenting compelling evidence supporting the 'RNA World' hypothesis. The study unveils an RNA enzyme that can make accurate copies of other functional RNA strands, while also allowing new variants of the molecule to emerge over time. These remarkable capabilities suggest the earliest forms of evolution may have occurred on a molecular scale in RNA, and also bring scientists one step closer to re-creating autonomous RNA-based life in the laboratory.

Anthropology: Early Humans Anthropology: General Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Ecology: Endangered Species Geoscience: Geochemistry
Published

An evolutionary mystery 125 million years in the making      (via sciencedaily.com)     Original source 

Plant biologists have uncovered an evolutionary mystery over 100 million years in the making. It turns out that sometime during the last 125 million years, tomatoes and Arabidopsis thaliana plants experienced an extreme genetic makeover. Just what happened remains unclear. But the mystery surrounds CLV3, a gene key to healthy plant growth and development.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Webb unlocks secrets of one of the most distant galaxies ever seen      (via sciencedaily.com)     Original source 

Looking deeply into space and time, astronomers have studied the exceptionally luminous galaxy GN-z11, which existed when our 13.8 billion-year-old universe was only about 430 million years old.

Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Photosynthetic secrets come to light      (via sciencedaily.com)     Original source 

Secrets of photosynthesis have been discovered at atomic level, shedding important new light on this plant super-power that greened the earth more than a billion years ago.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

Study determines the original orientations of rocks drilled on Mars      (via sciencedaily.com)     Original source 

Geologists determined the original orientation of many of the Mars bedrock samples collected by the Perseverance rover. The findings can give scientists clues to the conditions in which the rocks originally formed.

Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Marine Biology: Microbiology Biology: Molecular Ecology: Sea Life Geoscience: Earth Science Geoscience: Geochemistry
Published

Convergent evolution of algal CO2-fixing organelles      (via sciencedaily.com)     Original source 

Researchers identified the proteins of a CO2-fixing organelle, namely, 'pyrenoid,' in the marine algal group Chlorarachniophyta and revealed various pyrenoid-associated proteins among algal groups, suggesting the independent evolution of pyrenoids in different algal groups.